src/msw/listctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/listctrl.cpp
   3 // Purpose:     wxListCtrl
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "listctrl.h"
  22     #pragma implementation "listctrlbase.h"
  23 #endif
  24
  25 // For compilers that support precompilation, includes "wx.h".
  26 #include "wx/wxprec.h"
  27
  28 #ifdef __BORLANDC__
  29     #pragma hdrstop
  30 #endif
  31
  32 #if wxUSE_LISTCTRL && defined(__WIN95__)
  33
  34 #ifndef WX_PRECOMP
  35     #include "wx/app.h"
  36     #include "wx/intl.h"
  37     #include "wx/log.h"
  38     #include "wx/settings.h"
  39 #endif
  40
  41 #include "wx/textctrl.h"
  42 #include "wx/imaglist.h"
  43 #include "wx/listctrl.h"
  44 #include "wx/dcclient.h"
  45
  46 #include "wx/msw/private.h"
  47
  48 #if ((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__))
  49     #include "wx/msw/gnuwin32/extra.h"
  50 #else
  51     #include <commctrl.h>
  52 #endif
  53
  54 #include "wx/msw/missing.h"
  55
  56 // ----------------------------------------------------------------------------
  57 // private functions
  58 // ----------------------------------------------------------------------------
  59
  60 // convert our state and mask flags to LV_ITEM constants
  61 static void wxConvertToMSWFlags(long state, long mask, LV_ITEM& lvItem);
  62
  63 // convert wxListItem to LV_ITEM
  64 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
  65                                    const wxListItem& info, LV_ITEM& lvItem);
  66
  67 // convert LV_ITEM to wxListItem
  68 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
  69                                      wxListItem& info,
  70                                      /* const */ LV_ITEM& lvItem);
  71
  72 // convert our wxListItem to LV_COLUMN
  73 static void wxConvertToMSWListCol(int col, const wxListItem& item,
  74                                   LV_COLUMN& lvCol);
  75
  76 // ----------------------------------------------------------------------------
  77 // private helper classes
  78 // ----------------------------------------------------------------------------
  79
  80 // We have to handle both fooW and fooA notifications in several cases
  81 // because of broken commctl.dll and/or unicows.dll. This class is used to
  82 // convert LV_ITEMA and LV_ITEMW to LV_ITEM (which is either LV_ITEMA or
  83 // LV_ITEMW depending on wxUSE_UNICODE setting), so that it can be processed
  84 // by wxConvertToMSWListItem().
  85 class wxLV_ITEM
  86 {
  87 public:
  88     ~wxLV_ITEM() { delete m_buf; }
  89     operator LV_ITEM&() const { return *m_item; }
  90
  91 #if wxUSE_UNICODE
  92     wxLV_ITEM(LV_ITEMW &item) : m_buf(NULL), m_item(&item) {}
  93     wxLV_ITEM(LV_ITEMA &item)
  94     {
  95         m_item = new LV_ITEM((LV_ITEM&)item);
  96         if ( (item.mask & LVIF_TEXT) && item.pszText )
  97         {
  98             m_buf = new wxMB2WXbuf(wxConvLocal.cMB2WX(item.pszText));
  99             m_item->pszText = (wxChar*)m_buf->data();
 100         }
 101         else
 102             m_buf = NULL;
 103     }
 104 private:
 105     wxMB2WXbuf *m_buf;
 106
 107 #else // !wxUSE_UNICODE
 108     wxLV_ITEM(LV_ITEMW &item)
 109     {
 110         m_item = new LV_ITEM((LV_ITEM&)item);
 111
 112         // the code below doesn't compile without wxUSE_WCHAR_T and as I don't
 113         // know if it's useful to have it at all (do we ever get Unicode
 114         // notifications in ANSI mode? I don't think so...) I'm not going to
 115         // write alternative implementation right now
 116         //
 117         // but if it is indeed used, we should simply directly use
 118         // ::WideCharToMultiByte() here
 119 #if wxUSE_WCHAR_T
 120         if ( (item.mask & LVIF_TEXT) && item.pszText )
 121         {
 122             m_buf = new wxWC2WXbuf(wxConvLocal.cWC2WX(item.pszText));
 123             m_item->pszText = (wxChar*)m_buf->data();
 124         }
 125         else
 126 #endif // wxUSE_WCHAR_T
 127             m_buf = NULL;
 128     }
 129     wxLV_ITEM(LV_ITEMA &item) : m_buf(NULL), m_item(&item) {}
 130 private:
 131     wxWC2WXbuf *m_buf;
 132 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 133
 134     LV_ITEM *m_item;
 135
 136     DECLARE_NO_COPY_CLASS(wxLV_ITEM)
 137 };
 138
 139 ///////////////////////////////////////////////////////
 140 // Problem:
 141 // The MSW version had problems with SetTextColour() et
 142 // al as the wxListItemAttr's were stored keyed on the
 143 // item index. If a item was inserted anywhere but the end
 144 // of the list the the text attributes (colour etc) for
 145 // the following items were out of sync.
 146 //
 147 // Solution:
 148 // Under MSW the only way to associate data with a List
 149 // item independant of its position in the list is to
 150 // store a pointer to it in its lParam attribute. However
 151 // user programs are already using this (via the
 152 // SetItemData() GetItemData() calls).
 153 //
 154 // However what we can do is store a pointer to a
 155 // structure which contains the attributes we want *and*
 156 // a lParam for the users data, e.g.
 157 //
 158 // class wxListItemInternalData
 159 // {
 160 // public:
 161 //   wxListItemAttr *attr;
 162 //   long lParam; // user data
 163 // };
 164 //
 165 // To conserve memory, a wxListItemInternalData is
 166 // only allocated for a LV_ITEM if text attributes or
 167 // user data(lparam) are being set.
 168
 169
 170 // class wxListItemInternalData
 171 class wxListItemInternalData
 172 {
 173 public:
 174    wxListItemAttr *attr;
 175    LPARAM lParam; // user data
 176
 177    wxListItemInternalData() : attr(NULL), lParam(0) {}
 178    ~wxListItemInternalData()
 179    {
 180        if (attr)
 181            delete attr;
 182    };
 183
 184     DECLARE_NO_COPY_CLASS(wxListItemInternalData)
 185 };
 186
 187 // Get the internal data structure
 188 static wxListItemInternalData *wxGetInternalData(HWND hwnd, long itemId);
 189 static wxListItemInternalData *wxGetInternalData(wxListCtrl *ctl, long itemId);
 190 static wxListItemAttr *wxGetInternalDataAttr(wxListCtrl *ctl, long itemId);
 191 static void wxDeleteInternalData(wxListCtrl* ctl, long itemId);
 192
 193
 194 // ----------------------------------------------------------------------------
 195 // events
 196 // ----------------------------------------------------------------------------
 197
 198 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_DRAG)
 199 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_RDRAG)
 200 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT)
 201 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_END_LABEL_EDIT)
 202 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_DELETE_ITEM)
 203 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS)
 204 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_GET_INFO)
 205 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_SET_INFO)
 206 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_SELECTED)
 207 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_DESELECTED)
 208 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_KEY_DOWN)
 209 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_INSERT_ITEM)
 210 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_CLICK)
 211 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_RIGHT_CLICK)
 212 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_BEGIN_DRAG)
 213 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_DRAGGING)
 214 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_END_DRAG)
 215 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK)
 216 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_MIDDLE_CLICK)
 217 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_ACTIVATED)
 218 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_FOCUSED)
 219 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_CACHE_HINT)
 220
 221 IMPLEMENT_DYNAMIC_CLASS(wxListCtrl, wxControl)
 222 IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl)
 223 IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject)
 224
 225 IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent)
 226
 227 BEGIN_EVENT_TABLE(wxListCtrl, wxControl)
 228     EVT_PAINT(wxListCtrl::OnPaint)
 229 END_EVENT_TABLE()
 230
 231 // ============================================================================
 232 // implementation
 233 // ============================================================================
 234
 235 // ----------------------------------------------------------------------------
 236 // wxListCtrl construction
 237 // ----------------------------------------------------------------------------
 238
 239 void wxListCtrl::Init()
 240 {
 241     m_imageListNormal = NULL;
 242     m_imageListSmall = NULL;
 243     m_imageListState = NULL;
 244     m_ownsImageListNormal = m_ownsImageListSmall = m_ownsImageListState = FALSE;
 245     m_baseStyle = 0;
 246     m_colCount = 0;
 247     m_textCtrl = NULL;
 248     m_AnyInternalData = FALSE;
 249     m_hasAnyAttr = FALSE;
 250 }
 251
 252 bool wxListCtrl::Create(wxWindow *parent,
 253                         wxWindowID id,
 254                         const wxPoint& pos,
 255                         const wxSize& size,
 256                         long style,
 257                         const wxValidator& validator,
 258                         const wxString& name)
 259 {
 260 #if wxUSE_VALIDATORS
 261     SetValidator(validator);
 262 #endif // wxUSE_VALIDATORS
 263
 264     SetName(name);
 265
 266     int x = pos.x;
 267     int y = pos.y;
 268     int width = size.x;
 269     int height = size.y;
 270
 271     m_windowStyle = style;
 272
 273     SetParent(parent);
 274
 275     if (width <= 0)
 276         width = 100;
 277     if (height <= 0)
 278         height = 30;
 279     if (x < 0)
 280         x = 0;
 281     if (y < 0)
 282         y = 0;
 283
 284     m_windowId = (id == -1) ? NewControlId() : id;
 285
 286     DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP |
 287                    LVS_SHAREIMAGELISTS | LVS_SHOWSELALWAYS;
 288
 289     if ( m_windowStyle & wxCLIP_SIBLINGS )
 290         wstyle |= WS_CLIPSIBLINGS;
 291
 292     if ( wxStyleHasBorder(m_windowStyle) )
 293         wstyle |= WS_BORDER;
 294     m_baseStyle = wstyle;
 295
 296     if ( !DoCreateControl(x, y, width, height) )
 297         return FALSE;
 298
 299     if (parent)
 300         parent->AddChild(this);
 301
 302     return TRUE;
 303 }
 304
 305 bool wxListCtrl::DoCreateControl(int x, int y, int w, int h)
 306 {
 307     DWORD wstyle = m_baseStyle;
 308
 309     bool want3D;
 310     WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
 311
 312     // Even with extended styles, need to combine with WS_BORDER
 313     // for them to look right.
 314     if ( want3D )
 315         wstyle |= WS_BORDER;
 316
 317     long oldStyle = 0; // Dummy
 318     wstyle |= ConvertToMSWStyle(oldStyle, m_windowStyle);
 319
 320     // Create the ListView control.
 321     m_hWnd = (WXHWND)CreateWindowEx(exStyle,
 322                                     WC_LISTVIEW,
 323                                     wxT(""),
 324                                     wstyle,
 325                                     x, y, w, h,
 326                                     GetWinHwnd(GetParent()),
 327                                     (HMENU)m_windowId,
 328                                     wxGetInstance(),
 329                                     NULL);
 330
 331     if ( !m_hWnd )
 332     {
 333         wxLogError(_("Can't create list control window, check that comctl32.dll is installed."));
 334
 335         return FALSE;
 336     }
 337
 338     // for comctl32.dll v 4.70+ we want to have this attribute because it's
 339     // prettier (and also because wxGTK does it like this)
 340     if ( (wstyle & LVS_REPORT) && wxTheApp->GetComCtl32Version() >= 470 )
 341     {
 342         ::SendMessage(GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE,
 343                       0, LVS_EX_FULLROWSELECT);
 344     }
 345
 346     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
 347     SetForegroundColour(GetParent()->GetForegroundColour());
 348
 349     SubclassWin(m_hWnd);
 350
 351     return TRUE;
 352 }
 353
 354 void wxListCtrl::UpdateStyle()
 355 {
 356     if ( GetHWND() )
 357     {
 358         // The new window view style
 359         long dummy;
 360         DWORD dwStyleNew = ConvertToMSWStyle(dummy, m_windowStyle);
 361         dwStyleNew |= m_baseStyle;
 362
 363         // Get the current window style.
 364         DWORD dwStyleOld = ::GetWindowLong(GetHwnd(), GWL_STYLE);
 365
 366         // Only set the window style if the view bits have changed.
 367         if ( dwStyleOld != dwStyleNew )
 368         {
 369             ::SetWindowLong(GetHwnd(), GWL_STYLE, dwStyleNew);
 370         }
 371     }
 372 }
 373
 374 void wxListCtrl::FreeAllInternalData()
 375 {
 376     if (m_AnyInternalData)
 377     {
 378         int n = GetItemCount();
 379         int i = 0;
 380
 381         for (i = 0; i < n; i++)
 382             wxDeleteInternalData(this, i);
 383
 384         m_AnyInternalData = FALSE;
 385     }
 386 }
 387
 388 wxListCtrl::~wxListCtrl()
 389 {
 390     FreeAllInternalData();
 391
 392     if ( m_textCtrl )
 393     {
 394         m_textCtrl->SetHWND(0);
 395         m_textCtrl->UnsubclassWin();
 396         delete m_textCtrl;
 397         m_textCtrl = NULL;
 398     }
 399
 400     if (m_ownsImageListNormal) delete m_imageListNormal;
 401     if (m_ownsImageListSmall) delete m_imageListSmall;
 402     if (m_ownsImageListState) delete m_imageListState;
 403 }
 404
 405 // ----------------------------------------------------------------------------
 406 // set/get/change style
 407 // ----------------------------------------------------------------------------
 408
 409 // Add or remove a single window style
 410 void wxListCtrl::SetSingleStyle(long style, bool add)
 411 {
 412     long flag = GetWindowStyleFlag();
 413
 414     // Get rid of conflicting styles
 415     if ( add )
 416     {
 417         if ( style & wxLC_MASK_TYPE)
 418             flag = flag & ~wxLC_MASK_TYPE;
 419         if ( style & wxLC_MASK_ALIGN )
 420             flag = flag & ~wxLC_MASK_ALIGN;
 421         if ( style & wxLC_MASK_SORT )
 422             flag = flag & ~wxLC_MASK_SORT;
 423     }
 424
 425     if ( flag & style )
 426     {
 427         if ( !add )
 428             flag -= style;
 429     }
 430     else
 431     {
 432         if ( add )
 433         {
 434             flag |= style;
 435         }
 436     }
 437
 438     m_windowStyle = flag;
 439
 440     UpdateStyle();
 441 }
 442
 443 // Set the whole window style
 444 void wxListCtrl::SetWindowStyleFlag(long flag)
 445 {
 446     m_windowStyle = flag;
 447
 448     UpdateStyle();
 449 }
 450
 451 // Can be just a single style, or a bitlist
 452 long wxListCtrl::ConvertToMSWStyle(long& oldStyle, long style) const
 453 {
 454     long wstyle = 0;
 455     if ( style & wxLC_ICON )
 456     {
 457         if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
 458             oldStyle -= LVS_SMALLICON;
 459         if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
 460             oldStyle -= LVS_REPORT;
 461         if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
 462             oldStyle -= LVS_LIST;
 463         wstyle |= LVS_ICON;
 464     }
 465
 466     if ( style & wxLC_SMALL_ICON )
 467     {
 468         if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
 469             oldStyle -= LVS_ICON;
 470         if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
 471             oldStyle -= LVS_REPORT;
 472         if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
 473             oldStyle -= LVS_LIST;
 474         wstyle |= LVS_SMALLICON;
 475     }
 476
 477     if ( style & wxLC_LIST )
 478     {
 479         if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
 480             oldStyle -= LVS_ICON;
 481         if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
 482             oldStyle -= LVS_REPORT;
 483         if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
 484             oldStyle -= LVS_SMALLICON;
 485         wstyle |= LVS_LIST;
 486     }
 487
 488     if ( style & wxLC_REPORT )
 489     {
 490         if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
 491             oldStyle -= LVS_ICON;
 492         if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
 493             oldStyle -= LVS_LIST;
 494         if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
 495             oldStyle -= LVS_SMALLICON;
 496
 497         wstyle |= LVS_REPORT;
 498     }
 499
 500     if ( style & wxLC_ALIGN_LEFT )
 501     {
 502         if ( oldStyle & LVS_ALIGNTOP )
 503             oldStyle -= LVS_ALIGNTOP;
 504         wstyle |= LVS_ALIGNLEFT;
 505     }
 506
 507     if ( style & wxLC_ALIGN_TOP )
 508     {
 509         if ( oldStyle & LVS_ALIGNLEFT )
 510             oldStyle -= LVS_ALIGNLEFT;
 511         wstyle |= LVS_ALIGNTOP;
 512     }
 513
 514     if ( style & wxLC_AUTOARRANGE )
 515         wstyle |= LVS_AUTOARRANGE;
 516
 517     if ( style & wxLC_NO_SORT_HEADER )
 518         wstyle |= LVS_NOSORTHEADER;
 519
 520     if ( style & wxLC_NO_HEADER )
 521         wstyle |= LVS_NOCOLUMNHEADER;
 522
 523     if ( style & wxLC_EDIT_LABELS )
 524         wstyle |= LVS_EDITLABELS;
 525
 526     if ( style & wxLC_SINGLE_SEL )
 527         wstyle |= LVS_SINGLESEL;
 528
 529     if ( style & wxLC_SORT_ASCENDING )
 530     {
 531         if ( oldStyle & LVS_SORTDESCENDING )
 532             oldStyle -= LVS_SORTDESCENDING;
 533         wstyle |= LVS_SORTASCENDING;
 534     }
 535
 536     if ( style & wxLC_SORT_DESCENDING )
 537     {
 538         if ( oldStyle & LVS_SORTASCENDING )
 539             oldStyle -= LVS_SORTASCENDING;
 540         wstyle |= LVS_SORTDESCENDING;
 541     }
 542
 543 #if !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
 544     if ( style & wxLC_VIRTUAL )
 545     {
 546         int ver = wxTheApp->GetComCtl32Version();
 547         if ( ver < 470 )
 548         {
 549             wxLogWarning(_("Please install a newer version of comctl32.dll\n(at least version 4.70 is required but you have %d.%02d)\nor this program won't operate correctly."),
 550                         ver / 100, ver % 100);
 551         }
 552
 553         wstyle |= LVS_OWNERDATA;
 554     }
 555 #endif
 556
 557     return wstyle;
 558 }
 559
 560 // ----------------------------------------------------------------------------
 561 // accessors
 562 // ----------------------------------------------------------------------------
 563
 564 // Sets the foreground, i.e. text, colour
 565 bool wxListCtrl::SetForegroundColour(const wxColour& col)
 566 {
 567     if ( !wxWindow::SetForegroundColour(col) )
 568         return FALSE;
 569
 570     ListView_SetTextColor(GetHwnd(), wxColourToRGB(col));
 571
 572     return TRUE;
 573 }
 574
 575 // Sets the background colour
 576 bool wxListCtrl::SetBackgroundColour(const wxColour& col)
 577 {
 578     if ( !wxWindow::SetBackgroundColour(col) )
 579         return FALSE;
 580
 581     // we set the same colour for both the "empty" background and the items
 582     // background
 583     COLORREF color = wxColourToRGB(col);
 584     ListView_SetBkColor(GetHwnd(), color);
 585     ListView_SetTextBkColor(GetHwnd(), color);
 586
 587     return TRUE;
 588 }
 589
 590 // Gets information about this column
 591 bool wxListCtrl::GetColumn(int col, wxListItem& item) const
 592 {
 593     LV_COLUMN lvCol;
 594     wxZeroMemory(lvCol);
 595
 596     lvCol.mask = LVCF_WIDTH;
 597
 598     if ( item.m_mask & wxLIST_MASK_TEXT )
 599     {
 600         lvCol.mask |= LVCF_TEXT;
 601         lvCol.pszText = new wxChar[513];
 602         lvCol.cchTextMax = 512;
 603     }
 604
 605     if ( item.m_mask & wxLIST_MASK_FORMAT )
 606     {
 607         lvCol.mask |= LVCF_FMT;
 608     }
 609
 610     if ( item.m_mask & wxLIST_MASK_IMAGE )
 611     {
 612         lvCol.mask |= LVCF_IMAGE;
 613     }
 614
 615     bool success = ListView_GetColumn(GetHwnd(), col, &lvCol) != 0;
 616
 617     //  item.m_subItem = lvCol.iSubItem;
 618     item.m_width = lvCol.cx;
 619
 620     if ( (item.m_mask & wxLIST_MASK_TEXT) && lvCol.pszText )
 621     {
 622         item.m_text = lvCol.pszText;
 623         delete[] lvCol.pszText;
 624     }
 625
 626     if ( item.m_mask & wxLIST_MASK_FORMAT )
 627     {
 628         switch (lvCol.fmt & LVCFMT_JUSTIFYMASK) {
 629             case LVCFMT_LEFT:
 630                 item.m_format = wxLIST_FORMAT_LEFT;
 631                 break;
 632             case LVCFMT_RIGHT:
 633                 item.m_format = wxLIST_FORMAT_RIGHT;
 634                 break;
 635             case LVCFMT_CENTER:
 636                 item.m_format = wxLIST_FORMAT_CENTRE;
 637                 break;
 638             default:
 639                 item.m_format = -1;  // Unknown?
 640                 break;
 641         }
 642     }
 643
 644 #if _WIN32_IE >= 0x0300
 645     if ( item.m_mask & wxLIST_MASK_IMAGE )
 646     {
 647         item.m_image = lvCol.iImage;
 648     }
 649 #endif
 650
 651     return success;
 652 }
 653
 654 // Sets information about this column
 655 bool wxListCtrl::SetColumn(int col, wxListItem& item)
 656 {
 657     LV_COLUMN lvCol;
 658     wxConvertToMSWListCol(col, item, lvCol);
 659
 660     return ListView_SetColumn(GetHwnd(), col, &lvCol) != 0;
 661 }
 662
 663 // Gets the column width
 664 int wxListCtrl::GetColumnWidth(int col) const
 665 {
 666     return ListView_GetColumnWidth(GetHwnd(), col);
 667 }
 668
 669 // Sets the column width
 670 bool wxListCtrl::SetColumnWidth(int col, int width)
 671 {
 672     int col2 = col;
 673     if ( m_windowStyle & wxLC_LIST )
 674         col2 = -1;
 675
 676     int width2 = width;
 677     if ( width2 == wxLIST_AUTOSIZE)
 678         width2 = LVSCW_AUTOSIZE;
 679     else if ( width2 == wxLIST_AUTOSIZE_USEHEADER)
 680         width2 = LVSCW_AUTOSIZE_USEHEADER;
 681
 682     return ListView_SetColumnWidth(GetHwnd(), col2, width2) != 0;
 683 }
 684
 685 // Gets the number of items that can fit vertically in the
 686 // visible area of the list control (list or report view)
 687 // or the total number of items in the list control (icon
 688 // or small icon view)
 689 int wxListCtrl::GetCountPerPage() const
 690 {
 691     return ListView_GetCountPerPage(GetHwnd());
 692 }
 693
 694 // Gets the edit control for editing labels.
 695 wxTextCtrl* wxListCtrl::GetEditControl() const
 696 {
 697     return m_textCtrl;
 698 }
 699
 700 // Gets information about the item
 701 bool wxListCtrl::GetItem(wxListItem& info) const
 702 {
 703     LV_ITEM lvItem;
 704     wxZeroMemory(lvItem);
 705
 706     lvItem.iItem = info.m_itemId;
 707     lvItem.iSubItem = info.m_col;
 708
 709     if ( info.m_mask & wxLIST_MASK_TEXT )
 710     {
 711         lvItem.mask |= LVIF_TEXT;
 712         lvItem.pszText = new wxChar[513];
 713         lvItem.cchTextMax = 512;
 714     }
 715     else
 716     {
 717         lvItem.pszText = NULL;
 718     }
 719
 720     if (info.m_mask & wxLIST_MASK_DATA)
 721         lvItem.mask |= LVIF_PARAM;
 722
 723     if (info.m_mask & wxLIST_MASK_IMAGE)
 724         lvItem.mask |= LVIF_IMAGE;
 725
 726     if ( info.m_mask & wxLIST_MASK_STATE )
 727     {
 728         lvItem.mask |= LVIF_STATE;
 729         // the other bits are hardly interesting anyhow
 730         lvItem.stateMask = LVIS_SELECTED | LVIS_FOCUSED;
 731     }
 732
 733     bool success = ListView_GetItem((HWND)GetHWND(), &lvItem) != 0;
 734     if ( !success )
 735     {
 736         wxLogError(_("Couldn't retrieve information about list control item %d."),
 737                 lvItem.iItem);
 738     }
 739     else
 740     {
 741         // give NULL as hwnd as we already have everything we need
 742         wxConvertFromMSWListItem(NULL, info, lvItem);
 743     }
 744
 745     if (lvItem.pszText)
 746         delete[] lvItem.pszText;
 747
 748     return success;
 749 }
 750
 751 // Sets information about the item
 752 bool wxListCtrl::SetItem(wxListItem& info)
 753 {
 754     LV_ITEM item;
 755     wxConvertToMSWListItem(this, info, item);
 756
 757     // we never update the lParam if it contains our pointer
 758     // to the wxListItemInternalData structure
 759     item.mask &= ~LVIF_PARAM;
 760
 761     // check if setting attributes or lParam
 762     if (info.HasAttributes() || (info.m_mask  & wxLIST_MASK_DATA))
 763     {
 764         // get internal item data
 765         // perhaps a cache here ?
 766         wxListItemInternalData *data = wxGetInternalData(this, info.m_itemId);
 767
 768         if (! data)
 769         {
 770             // need to set it
 771             m_AnyInternalData = TRUE;
 772             data = new wxListItemInternalData();
 773             item.lParam = (LPARAM) data;
 774             item.mask |= LVIF_PARAM;
 775         };
 776
 777
 778         // user data
 779         if (info.m_mask  & wxLIST_MASK_DATA)
 780             data->lParam = info.m_data;
 781
 782         // attributes
 783         if (info.HasAttributes())
 784         {
 785             if (data->attr)
 786                 *data->attr = *info.GetAttributes();
 787             else
 788                 data->attr = new wxListItemAttr(*info.GetAttributes());
 789         };
 790     };
 791
 792
 793     // we could be changing only the attribute in which case we don't need to
 794     // call ListView_SetItem() at all
 795     if ( item.mask )
 796     {
 797         item.cchTextMax = 0;
 798         if ( !ListView_SetItem(GetHwnd(), &item) )
 799         {
 800             wxLogDebug(_T("ListView_SetItem() failed"));
 801
 802             return FALSE;
 803         }
 804     }
 805
 806     // we need to update the item immediately to show the new image
 807     bool updateNow = (info.m_mask & wxLIST_MASK_IMAGE) != 0;
 808
 809     // check whether it has any custom attributes
 810     if ( info.HasAttributes() )
 811     {
 812         m_hasAnyAttr = TRUE;
 813
 814         // if the colour has changed, we must redraw the item
 815         updateNow = TRUE;
 816     }
 817
 818     if ( updateNow )
 819     {
 820         // we need this to make the change visible right now
 821         RefreshItem(item.iItem);
 822     }
 823
 824     return TRUE;
 825 }
 826
 827 long wxListCtrl::SetItem(long index, int col, const wxString& label, int imageId)
 828 {
 829     wxListItem info;
 830     info.m_text = label;
 831     info.m_mask = wxLIST_MASK_TEXT;
 832     info.m_itemId = index;
 833     info.m_col = col;
 834     if ( imageId > -1 )
 835     {
 836         info.m_image = imageId;
 837         info.m_mask |= wxLIST_MASK_IMAGE;
 838     }
 839     return SetItem(info);
 840 }
 841
 842
 843 // Gets the item state
 844 int wxListCtrl::GetItemState(long item, long stateMask) const
 845 {
 846     wxListItem info;
 847
 848     info.m_mask = wxLIST_MASK_STATE;
 849     info.m_stateMask = stateMask;
 850     info.m_itemId = item;
 851
 852     if (!GetItem(info))
 853         return 0;
 854
 855     return info.m_state;
 856 }
 857
 858 // Sets the item state
 859 bool wxListCtrl::SetItemState(long item, long state, long stateMask)
 860 {
 861     // NB: don't use SetItem() here as it doesn't work with the virtual list
 862     //     controls
 863     LV_ITEM lvItem;
 864     wxZeroMemory(lvItem);
 865
 866     wxConvertToMSWFlags(state, stateMask, lvItem);
 867
 868     // for the virtual list controls we need to refresh the previously focused
 869     // item manually when changing focus without changing selection
 870     // programmatically because otherwise it keeps its focus rectangle until
 871     // next repaint (yet another comctl32 bug)
 872     long focusOld;
 873     if ( IsVirtual() &&
 874          (stateMask & wxLIST_STATE_FOCUSED) &&
 875          (state & wxLIST_STATE_FOCUSED) )
 876     {
 877         focusOld = GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_FOCUSED);
 878     }
 879     else
 880     {
 881         focusOld = -1;
 882     }
 883
 884     if ( !::SendMessage(GetHwnd(), LVM_SETITEMSTATE,
 885                         (WPARAM)item, (LPARAM)&lvItem) )
 886     {
 887         wxLogLastError(_T("ListView_SetItemState"));
 888
 889         return FALSE;
 890     }
 891
 892     if ( focusOld != -1 )
 893     {
 894         // no need to refresh the item if it was previously selected, it would
 895         // only result in annoying flicker
 896         if ( !(GetItemState(focusOld,
 897                             wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED) )
 898         {
 899             RefreshItem(focusOld);
 900         }
 901     }
 902
 903     return TRUE;
 904 }
 905
 906 // Sets the item image
 907 bool wxListCtrl::SetItemImage(long item, int image, int WXUNUSED(selImage))
 908 {
 909     wxListItem info;
 910
 911     info.m_mask = wxLIST_MASK_IMAGE;
 912     info.m_image = image;
 913     info.m_itemId = item;
 914
 915     return SetItem(info);
 916 }
 917
 918 // Gets the item text
 919 wxString wxListCtrl::GetItemText(long item) const
 920 {
 921     wxListItem info;
 922
 923     info.m_mask = wxLIST_MASK_TEXT;
 924     info.m_itemId = item;
 925
 926     if (!GetItem(info))
 927         return wxEmptyString;
 928     return info.m_text;
 929 }
 930
 931 // Sets the item text
 932 void wxListCtrl::SetItemText(long item, const wxString& str)
 933 {
 934     wxListItem info;
 935
 936     info.m_mask = wxLIST_MASK_TEXT;
 937     info.m_itemId = item;
 938     info.m_text = str;
 939
 940     SetItem(info);
 941 }
 942
 943 // Gets the item data
 944 long wxListCtrl::GetItemData(long item) const
 945 {
 946     wxListItem info;
 947
 948     info.m_mask = wxLIST_MASK_DATA;
 949     info.m_itemId = item;
 950
 951     if (!GetItem(info))
 952         return 0;
 953     return info.m_data;
 954 }
 955
 956 // Sets the item data
 957 bool wxListCtrl::SetItemData(long item, long data)
 958 {
 959     wxListItem info;
 960
 961     info.m_mask = wxLIST_MASK_DATA;
 962     info.m_itemId = item;
 963     info.m_data = data;
 964
 965     return SetItem(info);
 966 }
 967
 968 // Gets the item rectangle
 969 bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
 970 {
 971     RECT rectWin;
 972
 973     int codeWin;
 974     if ( code == wxLIST_RECT_BOUNDS )
 975         codeWin = LVIR_BOUNDS;
 976     else if ( code == wxLIST_RECT_ICON )
 977         codeWin = LVIR_ICON;
 978     else if ( code == wxLIST_RECT_LABEL )
 979         codeWin = LVIR_LABEL;
 980     else
 981     {
 982         wxFAIL_MSG( _T("incorrect code in GetItemRect()") );
 983
 984         codeWin = LVIR_BOUNDS;
 985     }
 986
 987     bool success = ListView_GetItemRect(GetHwnd(), (int) item, &rectWin, codeWin) != 0;
 988
 989     rect.x = rectWin.left;
 990     rect.y = rectWin.top;
 991     rect.width = rectWin.right - rectWin.left;
 992     rect.height = rectWin.bottom - rectWin.top;
 993
 994     return success;
 995 }
 996
 997 // Gets the item position
 998 bool wxListCtrl::GetItemPosition(long item, wxPoint& pos) const
 999 {
1000     POINT pt;
1001
1002     bool success = (ListView_GetItemPosition(GetHwnd(), (int) item, &pt) != 0);
1003
1004     pos.x = pt.x; pos.y = pt.y;
1005     return success;
1006 }
1007
1008 // Sets the item position.
1009 bool wxListCtrl::SetItemPosition(long item, const wxPoint& pos)
1010 {
1011     return (ListView_SetItemPosition(GetHwnd(), (int) item, pos.x, pos.y) != 0);
1012 }
1013
1014 // Gets the number of items in the list control
1015 int wxListCtrl::GetItemCount() const
1016 {
1017     return ListView_GetItemCount(GetHwnd());
1018 }
1019
1020 // Retrieves the spacing between icons in pixels.
1021 // If small is TRUE, gets the spacing for the small icon
1022 // view, otherwise the large icon view.
1023 int wxListCtrl::GetItemSpacing(bool isSmall) const
1024 {
1025     return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
1026 }
1027
1028 void wxListCtrl::SetItemTextColour( long item, const wxColour &col )
1029 {
1030     wxListItem info;
1031     info.m_itemId = item;
1032     info.SetTextColour( col );
1033     SetItem( info );
1034 }
1035
1036 wxColour wxListCtrl::GetItemTextColour( long item ) const
1037 {
1038     wxListItem info;
1039     info.m_itemId = item;
1040     GetItem( info );
1041     return info.GetTextColour();
1042 }
1043
1044 void wxListCtrl::SetItemBackgroundColour( long item, const wxColour &col )
1045 {
1046     wxListItem info;
1047     info.m_itemId = item;
1048     info.SetBackgroundColour( col );
1049     SetItem( info );
1050 }
1051
1052 wxColour wxListCtrl::GetItemBackgroundColour( long item ) const
1053 {
1054     wxListItem info;
1055     info.m_itemId = item;
1056     GetItem( info );
1057     return info.GetBackgroundColour();
1058 }
1059
1060 // Gets the number of selected items in the list control
1061 int wxListCtrl::GetSelectedItemCount() const
1062 {
1063     return ListView_GetSelectedCount(GetHwnd());
1064 }
1065
1066 // Gets the text colour of the listview
1067 wxColour wxListCtrl::GetTextColour() const
1068 {
1069     COLORREF ref = ListView_GetTextColor(GetHwnd());
1070     wxColour col(GetRValue(ref), GetGValue(ref), GetBValue(ref));
1071     return col;
1072 }
1073
1074 // Sets the text colour of the listview
1075 void wxListCtrl::SetTextColour(const wxColour& col)
1076 {
1077     ListView_SetTextColor(GetHwnd(), PALETTERGB(col.Red(), col.Green(), col.Blue()));
1078 }
1079
1080 // Gets the index of the topmost visible item when in
1081 // list or report view
1082 long wxListCtrl::GetTopItem() const
1083 {
1084     return (long) ListView_GetTopIndex(GetHwnd());
1085 }
1086
1087 // Searches for an item, starting from 'item'.
1088 // 'geometry' is one of
1089 // wxLIST_NEXT_ABOVE/ALL/BELOW/LEFT/RIGHT.
1090 // 'state' is a state bit flag, one or more of
1091 // wxLIST_STATE_DROPHILITED/FOCUSED/SELECTED/CUT.
1092 // item can be -1 to find the first item that matches the
1093 // specified flags.
1094 // Returns the item or -1 if unsuccessful.
1095 long wxListCtrl::GetNextItem(long item, int geom, int state) const
1096 {
1097     long flags = 0;
1098
1099     if ( geom == wxLIST_NEXT_ABOVE )
1100         flags |= LVNI_ABOVE;
1101     if ( geom == wxLIST_NEXT_ALL )
1102         flags |= LVNI_ALL;
1103     if ( geom == wxLIST_NEXT_BELOW )
1104         flags |= LVNI_BELOW;
1105     if ( geom == wxLIST_NEXT_LEFT )
1106         flags |= LVNI_TOLEFT;
1107     if ( geom == wxLIST_NEXT_RIGHT )
1108         flags |= LVNI_TORIGHT;
1109
1110     if ( state & wxLIST_STATE_CUT )
1111         flags |= LVNI_CUT;
1112     if ( state & wxLIST_STATE_DROPHILITED )
1113         flags |= LVNI_DROPHILITED;
1114     if ( state & wxLIST_STATE_FOCUSED )
1115         flags |= LVNI_FOCUSED;
1116     if ( state & wxLIST_STATE_SELECTED )
1117         flags |= LVNI_SELECTED;
1118
1119     return (long) ListView_GetNextItem(GetHwnd(), item, flags);
1120 }
1121
1122
1123 wxImageList *wxListCtrl::GetImageList(int which) const
1124 {
1125     if ( which == wxIMAGE_LIST_NORMAL )
1126     {
1127         return m_imageListNormal;
1128     }
1129     else if ( which == wxIMAGE_LIST_SMALL )
1130     {
1131         return m_imageListSmall;
1132     }
1133     else if ( which == wxIMAGE_LIST_STATE )
1134     {
1135         return m_imageListState;
1136     }
1137     return NULL;
1138 }
1139
1140 void wxListCtrl::SetImageList(wxImageList *imageList, int which)
1141 {
1142     int flags = 0;
1143     if ( which == wxIMAGE_LIST_NORMAL )
1144     {
1145         flags = LVSIL_NORMAL;
1146         if (m_ownsImageListNormal) delete m_imageListNormal;
1147         m_imageListNormal = imageList;
1148         m_ownsImageListNormal = FALSE;
1149     }
1150     else if ( which == wxIMAGE_LIST_SMALL )
1151     {
1152         flags = LVSIL_SMALL;
1153         if (m_ownsImageListSmall) delete m_imageListSmall;
1154         m_imageListSmall = imageList;
1155         m_ownsImageListSmall = FALSE;
1156     }
1157     else if ( which == wxIMAGE_LIST_STATE )
1158     {
1159         flags = LVSIL_STATE;
1160         if (m_ownsImageListState) delete m_imageListState;
1161         m_imageListState = imageList;
1162         m_ownsImageListState = FALSE;
1163     }
1164     ListView_SetImageList(GetHwnd(), (HIMAGELIST) imageList ? imageList->GetHIMAGELIST() : 0, flags);
1165 }
1166
1167 void wxListCtrl::AssignImageList(wxImageList *imageList, int which)
1168 {
1169     SetImageList(imageList, which);
1170     if ( which == wxIMAGE_LIST_NORMAL )
1171         m_ownsImageListNormal = TRUE;
1172     else if ( which == wxIMAGE_LIST_SMALL )
1173         m_ownsImageListSmall = TRUE;
1174     else if ( which == wxIMAGE_LIST_STATE )
1175         m_ownsImageListState = TRUE;
1176 }
1177
1178 // ----------------------------------------------------------------------------
1179 // Operations
1180 // ----------------------------------------------------------------------------
1181
1182 // Arranges the items
1183 bool wxListCtrl::Arrange(int flag)
1184 {
1185     UINT code = 0;
1186     if ( flag == wxLIST_ALIGN_LEFT )
1187         code = LVA_ALIGNLEFT;
1188     else if ( flag == wxLIST_ALIGN_TOP )
1189         code = LVA_ALIGNTOP;
1190     else if ( flag == wxLIST_ALIGN_DEFAULT )
1191         code = LVA_DEFAULT;
1192     else if ( flag == wxLIST_ALIGN_SNAP_TO_GRID )
1193         code = LVA_SNAPTOGRID;
1194
1195     return (ListView_Arrange(GetHwnd(), code) != 0);
1196 }
1197
1198 // Deletes an item
1199 bool wxListCtrl::DeleteItem(long item)
1200 {
1201     if ( !ListView_DeleteItem(GetHwnd(), (int) item) )
1202     {
1203         wxLogLastError(_T("ListView_DeleteItem"));
1204         return FALSE;
1205     }
1206
1207     // the virtual list control doesn't refresh itself correctly, help it
1208     if ( IsVirtual() )
1209     {
1210         // we need to refresh all the lines below the one which was deleted
1211         wxRect rectItem;
1212         if ( item > 0 && GetItemCount() )
1213         {
1214             GetItemRect(item - 1, rectItem);
1215         }
1216         else
1217         {
1218             rectItem.y =
1219             rectItem.height = 0;
1220         }
1221
1222         wxRect rectWin = GetRect();
1223         rectWin.height = rectWin.GetBottom() - rectItem.GetBottom();
1224         rectWin.y = rectItem.GetBottom();
1225
1226         RefreshRect(rectWin);
1227     }
1228
1229     return TRUE;
1230 }
1231
1232 // Deletes all items
1233 bool wxListCtrl::DeleteAllItems()
1234 {
1235     return ListView_DeleteAllItems(GetHwnd()) != 0;
1236 }
1237
1238 // Deletes all items
1239 bool wxListCtrl::DeleteAllColumns()
1240 {
1241     while ( m_colCount > 0 )
1242     {
1243         if ( ListView_DeleteColumn(GetHwnd(), 0) == 0 )
1244         {
1245             wxLogLastError(wxT("ListView_DeleteColumn"));
1246
1247             return FALSE;
1248         }
1249
1250         m_colCount--;
1251     }
1252
1253     wxASSERT_MSG( m_colCount == 0, wxT("no columns should be left") );
1254
1255     return TRUE;
1256 }
1257
1258 // Deletes a column
1259 bool wxListCtrl::DeleteColumn(int col)
1260 {
1261     bool success = (ListView_DeleteColumn(GetHwnd(), col) != 0);
1262
1263     if ( success && (m_colCount > 0) )
1264         m_colCount --;
1265     return success;
1266 }
1267
1268 // Clears items, and columns if there are any.
1269 void wxListCtrl::ClearAll()
1270 {
1271     DeleteAllItems();
1272     if ( m_colCount > 0 )
1273         DeleteAllColumns();
1274 }
1275
1276 wxTextCtrl* wxListCtrl::EditLabel(long item, wxClassInfo* textControlClass)
1277 {
1278     wxASSERT( (textControlClass->IsKindOf(CLASSINFO(wxTextCtrl))) );
1279
1280     // ListView_EditLabel requires that the list has focus.
1281     SetFocus();
1282
1283     WXHWND hWnd = (WXHWND) ListView_EditLabel(GetHwnd(), item);
1284     if ( !hWnd )
1285     {
1286         // failed to start editing
1287         return NULL;
1288     }
1289
1290     // [re]create the text control wrapping the HWND we got
1291     if ( m_textCtrl )
1292     {
1293         m_textCtrl->SetHWND(0);
1294         m_textCtrl->UnsubclassWin();
1295         delete m_textCtrl;
1296     }
1297
1298     m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
1299     m_textCtrl->SetHWND(hWnd);
1300     m_textCtrl->SubclassWin(hWnd);
1301     m_textCtrl->SetParent(this);
1302
1303     // we must disallow TABbing away from the control while the edit contol is
1304     // shown because this leaves it in some strange state (just try removing
1305     // this line and then pressing TAB while editing an item in  listctrl
1306     // inside a panel)
1307     m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle() | wxTE_PROCESS_TAB);
1308
1309     return m_textCtrl;
1310 }
1311
1312 // End label editing, optionally cancelling the edit
1313 bool wxListCtrl::EndEditLabel(bool WXUNUSED(cancel))
1314 {
1315     wxFAIL_MSG( _T("not implemented") );
1316
1317     return FALSE;
1318 }
1319
1320 // Ensures this item is visible
1321 bool wxListCtrl::EnsureVisible(long item)
1322 {
1323     return ListView_EnsureVisible(GetHwnd(), (int) item, FALSE) != 0;
1324 }
1325
1326 // Find an item whose label matches this string, starting from the item after 'start'
1327 // or the beginning if 'start' is -1.
1328 long wxListCtrl::FindItem(long start, const wxString& str, bool partial)
1329 {
1330     LV_FINDINFO findInfo;
1331
1332     findInfo.flags = LVFI_STRING;
1333     if ( partial )
1334         findInfo.flags |= LVFI_PARTIAL;
1335     findInfo.psz = str;
1336
1337     // ListView_FindItem() excludes the first item from search and to look
1338     // through all the items you need to start from -1 which is unnatural and
1339     // inconsistent with the generic version - so we adjust the index
1340     if (start != -1)
1341         start --;
1342     return ListView_FindItem(GetHwnd(), (int) start, &findInfo);
1343 }
1344
1345 // Find an item whose data matches this data, starting from the item after 'start'
1346 // or the beginning if 'start' is -1.
1347 // NOTE : Lindsay Mathieson - 14-July-2002
1348 //        No longer use ListView_FindItem as the data attribute is now stored
1349 //        in a wxListItemInternalData structure refernced by the actual lParam
1350 long wxListCtrl::FindItem(long start, long data)
1351 {
1352     long  idx = start + 1;
1353     long count = GetItemCount();
1354
1355     while (idx < count)
1356     {
1357         if (GetItemData(idx) == data)
1358             return idx;
1359         idx++;
1360     };
1361
1362     return -1;
1363 }
1364
1365 // Find an item nearest this position in the specified direction, starting from
1366 // the item after 'start' or the beginning if 'start' is -1.
1367 long wxListCtrl::FindItem(long start, const wxPoint& pt, int direction)
1368 {
1369     LV_FINDINFO findInfo;
1370
1371     findInfo.flags = LVFI_NEARESTXY;
1372     findInfo.pt.x = pt.x;
1373     findInfo.pt.y = pt.y;
1374     findInfo.vkDirection = VK_RIGHT;
1375
1376     if ( direction == wxLIST_FIND_UP )
1377         findInfo.vkDirection = VK_UP;
1378     else if ( direction == wxLIST_FIND_DOWN )
1379         findInfo.vkDirection = VK_DOWN;
1380     else if ( direction == wxLIST_FIND_LEFT )
1381         findInfo.vkDirection = VK_LEFT;
1382     else if ( direction == wxLIST_FIND_RIGHT )
1383         findInfo.vkDirection = VK_RIGHT;
1384
1385     return ListView_FindItem(GetHwnd(), (int) start, & findInfo);
1386 }
1387
1388 // Determines which item (if any) is at the specified point,
1389 // giving details in 'flags' (see wxLIST_HITTEST_... flags above)
1390 long wxListCtrl::HitTest(const wxPoint& point, int& flags)
1391 {
1392     LV_HITTESTINFO hitTestInfo;
1393     hitTestInfo.pt.x = (int) point.x;
1394     hitTestInfo.pt.y = (int) point.y;
1395
1396     ListView_HitTest(GetHwnd(), & hitTestInfo);
1397
1398     flags = 0;
1399     if ( hitTestInfo.flags & LVHT_ABOVE )
1400         flags |= wxLIST_HITTEST_ABOVE;
1401     if ( hitTestInfo.flags & LVHT_BELOW )
1402         flags |= wxLIST_HITTEST_BELOW;
1403     if ( hitTestInfo.flags & LVHT_NOWHERE )
1404         flags |= wxLIST_HITTEST_NOWHERE;
1405     if ( hitTestInfo.flags & LVHT_ONITEMICON )
1406         flags |= wxLIST_HITTEST_ONITEMICON;
1407     if ( hitTestInfo.flags & LVHT_ONITEMLABEL )
1408         flags |= wxLIST_HITTEST_ONITEMLABEL;
1409     if ( hitTestInfo.flags & LVHT_ONITEMSTATEICON )
1410         flags |= wxLIST_HITTEST_ONITEMSTATEICON;
1411     if ( hitTestInfo.flags & LVHT_TOLEFT )
1412         flags |= wxLIST_HITTEST_TOLEFT;
1413     if ( hitTestInfo.flags & LVHT_TORIGHT )
1414         flags |= wxLIST_HITTEST_TORIGHT;
1415
1416     return (long) hitTestInfo.iItem;
1417 }
1418
1419 // Inserts an item, returning the index of the new item if successful,
1420 // -1 otherwise.
1421 long wxListCtrl::InsertItem(wxListItem& info)
1422 {
1423     wxASSERT_MSG( !IsVirtual(), _T("can't be used with virtual controls") );
1424
1425     LV_ITEM item;
1426     wxConvertToMSWListItem(this, info, item);
1427     item.mask &= ~LVIF_PARAM;
1428
1429     // check wether we need to allocate our internal data
1430     bool needInternalData = ((info.m_mask & wxLIST_MASK_DATA) || info.HasAttributes());
1431     if (needInternalData)
1432     {
1433         m_AnyInternalData = TRUE;
1434         item.mask |= LVIF_PARAM;
1435
1436         // internal stucture that manages data
1437         wxListItemInternalData *data = new wxListItemInternalData();
1438         item.lParam = (LPARAM) data;
1439
1440         if (info.m_mask & wxLIST_MASK_DATA)
1441             data->lParam = info.m_data;
1442
1443     // check whether it has any custom attributes
1444     if ( info.HasAttributes() )
1445     {
1446             // take copy of attributes
1447             data->attr = new wxListItemAttr(*info.GetAttributes());
1448     }
1449     };
1450
1451
1452     return (long) ListView_InsertItem(GetHwnd(), & item);
1453 }
1454
1455 long wxListCtrl::InsertItem(long index, const wxString& label)
1456 {
1457     wxListItem info;
1458     info.m_text = label;
1459     info.m_mask = wxLIST_MASK_TEXT;
1460     info.m_itemId = index;
1461     return InsertItem(info);
1462 }
1463
1464 // Inserts an image item
1465 long wxListCtrl::InsertItem(long index, int imageIndex)
1466 {
1467     wxListItem info;
1468     info.m_image = imageIndex;
1469     info.m_mask = wxLIST_MASK_IMAGE;
1470     info.m_itemId = index;
1471     return InsertItem(info);
1472 }
1473
1474 // Inserts an image/string item
1475 long wxListCtrl::InsertItem(long index, const wxString& label, int imageIndex)
1476 {
1477     wxListItem info;
1478     info.m_image = imageIndex;
1479     info.m_text = label;
1480     info.m_mask = wxLIST_MASK_IMAGE | wxLIST_MASK_TEXT;
1481     info.m_itemId = index;
1482     return InsertItem(info);
1483 }
1484
1485 // For list view mode (only), inserts a column.
1486 long wxListCtrl::InsertColumn(long col, wxListItem& item)
1487 {
1488     LV_COLUMN lvCol;
1489     wxConvertToMSWListCol(col, item, lvCol);
1490
1491     if ( !(lvCol.mask & LVCF_WIDTH) )
1492     {
1493         // always give some width to the new column: this one is compatible
1494         // with the generic version
1495         lvCol.mask |= LVCF_WIDTH;
1496         lvCol.cx = 80;
1497     }
1498
1499     // when we insert a column which can contain an image, we must specify this
1500     // flag right now as doing it later in SetColumn() has no effect
1501     //
1502     // we use LVCFMT_BITMAP_ON_RIGHT by default because without it there is no
1503     // way to dynamically set/clear the bitmap as the column without a bitmap
1504     // on the left looks ugly (there is a hole)
1505     //
1506     // unfortunately with my version of comctl32.dll (5.80), the left column
1507     // image is always on the left and it seems that it's a "feature" - I
1508     // didn't find any way to work around it in any case
1509     if ( lvCol.mask & LVCF_IMAGE )
1510     {
1511         lvCol.mask |= LVCF_FMT;
1512         lvCol.fmt |= LVCFMT_BITMAP_ON_RIGHT;
1513     }
1514
1515     bool success = ListView_InsertColumn(GetHwnd(), col, &lvCol) != -1;
1516     if ( success )
1517     {
1518         m_colCount++;
1519     }
1520     else
1521     {
1522         wxLogDebug(wxT("Failed to insert the column '%s' into listview!"),
1523                    lvCol.pszText);
1524     }
1525
1526     return success;
1527 }
1528
1529 long wxListCtrl::InsertColumn(long col,
1530                               const wxString& heading,
1531                               int format,
1532                               int width)
1533 {
1534     wxListItem item;
1535     item.m_mask = wxLIST_MASK_TEXT | wxLIST_MASK_FORMAT;
1536     item.m_text = heading;
1537     if ( width > -1 )
1538     {
1539         item.m_mask |= wxLIST_MASK_WIDTH;
1540         item.m_width = width;
1541     }
1542     item.m_format = format;
1543
1544     return InsertColumn(col, item);
1545 }
1546
1547 // scroll the control by the given number of pixels (exception: in list view,
1548 // dx is interpreted as number of columns)
1549 bool wxListCtrl::ScrollList(int dx, int dy)
1550 {
1551     if ( !ListView_Scroll(GetHwnd(), dx, dy) )
1552     {
1553         wxLogDebug(_T("ListView_Scroll(%d, %d) failed"), dx, dy);
1554
1555         return FALSE;
1556     }
1557
1558     return TRUE;
1559 }
1560
1561 // Sort items.
1562
1563 // fn is a function which takes 3 long arguments: item1, item2, data.
1564 // item1 is the long data associated with a first item (NOT the index).
1565 // item2 is the long data associated with a second item (NOT the index).
1566 // data is the same value as passed to SortItems.
1567 // The return value is a negative number if the first item should precede the second
1568 // item, a positive number of the second item should precede the first,
1569 // or zero if the two items are equivalent.
1570
1571 // data is arbitrary data to be passed to the sort function.
1572
1573 // Internal structures for proxying the user compare function
1574 // so that we can pass it the *real* user data
1575
1576 // translate lParam data and call user func
1577 struct wxInternalDataSort
1578 {
1579     wxListCtrlCompare user_fn;
1580     long data;
1581 };
1582
1583 int CALLBACK wxInternalDataCompareFunc(LPARAM lParam1, LPARAM lParam2,  LPARAM lParamSort)
1584 {
1585     struct wxInternalDataSort *internalData = (struct wxInternalDataSort *) lParamSort;
1586
1587     wxListItemInternalData *data1 = (wxListItemInternalData *) lParam1;
1588     wxListItemInternalData *data2 = (wxListItemInternalData *) lParam2;
1589
1590     long d1 = (data1 == NULL ? 0 : data1->lParam);
1591     long d2 = (data2 == NULL ? 0 : data2->lParam);
1592
1593     return internalData->user_fn(d1, d2, internalData->data);
1594
1595 };
1596
1597 bool wxListCtrl::SortItems(wxListCtrlCompare fn, long data)
1598 {
1599     struct wxInternalDataSort internalData;
1600     internalData.user_fn = fn;
1601     internalData.data = data;
1602
1603     // WPARAM cast is needed for mingw/cygwin
1604     if ( !ListView_SortItems(GetHwnd(),
1605                              wxInternalDataCompareFunc,
1606                              (WPARAM) &internalData) )
1607     {
1608         wxLogDebug(_T("ListView_SortItems() failed"));
1609
1610         return FALSE;
1611     }
1612
1613     return TRUE;
1614 }
1615
1616
1617
1618 // ----------------------------------------------------------------------------
1619 // message processing
1620 // ----------------------------------------------------------------------------
1621
1622 bool wxListCtrl::MSWCommand(WXUINT cmd, WXWORD id)
1623 {
1624     if (cmd == EN_UPDATE)
1625     {
1626         wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
1627         event.SetEventObject( this );
1628         ProcessCommand(event);
1629         return TRUE;
1630     }
1631     else if (cmd == EN_KILLFOCUS)
1632     {
1633         wxCommandEvent event(wxEVT_KILL_FOCUS, id);
1634         event.SetEventObject( this );
1635         ProcessCommand(event);
1636         return TRUE;
1637     }
1638     else
1639         return FALSE;
1640 }
1641
1642 bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
1643 {
1644     // prepare the event
1645     // -----------------
1646
1647     wxListEvent event(wxEVT_NULL, m_windowId);
1648     event.SetEventObject(this);
1649
1650     wxEventType eventType = wxEVT_NULL;
1651
1652     NMHDR *nmhdr = (NMHDR *)lParam;
1653
1654     // if your compiler is as broken as this, you should really change it: this
1655     // code is needed for normal operation! #ifdef below is only useful for
1656     // automatic rebuilds which are done with a very old compiler version
1657 #ifdef HDN_BEGINTRACKA
1658
1659     // check for messages from the header (in report view)
1660     HWND hwndHdr = ListView_GetHeader(GetHwnd());
1661
1662     // is it a message from the header?
1663     if ( nmhdr->hwndFrom == hwndHdr )
1664     {
1665         HD_NOTIFY *nmHDR = (HD_NOTIFY *)nmhdr;
1666
1667         event.m_itemIndex = -1;
1668
1669         switch ( nmhdr->code )
1670         {
1671             // yet another comctl32.dll bug: under NT/W2K it sends Unicode
1672             // TRACK messages even to ANSI programs: on my system I get
1673             // HDN_BEGINTRACKW and HDN_ENDTRACKA and no HDN_TRACK at all!
1674             //
1675             // work around is to simply catch both versions and hope that it
1676             // works (why should this message exist in ANSI and Unicode is
1677             // beyond me as it doesn't deal with strings at all...)
1678             //
1679             // note that fr HDN_TRACK another possibility could be to use
1680             // HDN_ITEMCHANGING but it is sent even after HDN_ENDTRACK and when
1681             // something other than the item width changes so we'd have to
1682             // filter out the unwanted events then
1683             case HDN_BEGINTRACKA:
1684             case HDN_BEGINTRACKW:
1685                 eventType = wxEVT_COMMAND_LIST_COL_BEGIN_DRAG;
1686                 // fall through
1687
1688             case HDN_TRACKA:
1689             case HDN_TRACKW:
1690                 if ( eventType == wxEVT_NULL )
1691                     eventType = wxEVT_COMMAND_LIST_COL_DRAGGING;
1692                 // fall through
1693
1694             case HDN_ENDTRACKA:
1695             case HDN_ENDTRACKW:
1696                 if ( eventType == wxEVT_NULL )
1697                     eventType = wxEVT_COMMAND_LIST_COL_END_DRAG;
1698
1699                 event.m_item.m_width = nmHDR->pitem->cxy;
1700                 event.m_col = nmHDR->iItem;
1701                 break;
1702
1703             case NM_RCLICK:
1704                 {
1705                     eventType = wxEVT_COMMAND_LIST_COL_RIGHT_CLICK;
1706                     event.m_col = -1;
1707
1708                     // find the column clicked: we have to search for it
1709                     // ourselves as the notification message doesn't provide
1710                     // this info
1711
1712                     // where did the click occur?
1713                     POINT ptClick;
1714                     if ( !::GetCursorPos(&ptClick) )
1715                     {
1716                         wxLogLastError(_T("GetCursorPos"));
1717                     }
1718
1719                     if ( !::ScreenToClient(hwndHdr, &ptClick) )
1720                     {
1721                         wxLogLastError(_T("ScreenToClient(listctrl header)"));
1722                     }
1723
1724                     event.m_pointDrag.x = ptClick.x;
1725                     event.m_pointDrag.y = ptClick.y;
1726
1727                     int colCount = Header_GetItemCount(hwndHdr);
1728
1729                     RECT rect;
1730                     for ( int col = 0; col < colCount; col++ )
1731                     {
1732                         if ( Header_GetItemRect(hwndHdr, col, &rect) )
1733                         {
1734                             if ( ::PtInRect(&rect, ptClick) )
1735                             {
1736                                 event.m_col = col;
1737                                 break;
1738                             }
1739                         }
1740                     }
1741                 }
1742                 break;
1743
1744             case HDN_GETDISPINFOW:
1745                 {
1746                     LPNMHDDISPINFOW info = (LPNMHDDISPINFOW) lParam;
1747                     // This is a fix for a strange bug under XP.
1748                     // Normally, info->iItem is a valid index, but
1749                     // sometimes this is a silly (large) number
1750                     // and when we return FALSE via wxControl::MSWOnNotify
1751                     // to indicate that it hasn't yet been processed,
1752                     // there's a GPF in Windows.
1753                     // By returning TRUE here, we avoid further processing
1754                     // of this strange message.
1755                     if (info->iItem > GetColumnCount())
1756                         return TRUE;
1757                 }
1758                 // fall through
1759
1760             default:
1761                 return wxControl::MSWOnNotify(idCtrl, lParam, result);
1762         }
1763     }
1764     else
1765 #endif // defined(HDN_BEGINTRACKA)
1766         if ( nmhdr->hwndFrom == GetHwnd() )
1767     {
1768         // almost all messages use NM_LISTVIEW
1769         NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
1770
1771         const int iItem = nmLV->iItem;
1772
1773         // set the data event field for all messages for which the system gives
1774         // us a valid NM_LISTVIEW::lParam
1775         switch ( nmLV->hdr.code )
1776         {
1777             case LVN_BEGINDRAG:
1778             case LVN_BEGINRDRAG:
1779             case LVN_COLUMNCLICK:
1780             case LVN_ITEMCHANGED:
1781             case LVN_ITEMCHANGING:
1782                 if ( iItem != -1 )
1783                 {
1784                     wxListItemInternalData *internaldata =
1785                         (wxListItemInternalData *) nmLV->lParam;
1786
1787                     if ( internaldata )
1788                         event.m_item.m_data = internaldata->lParam;
1789                 }
1790
1791             default:
1792                 // fall through
1793                 ;
1794         }
1795
1796         switch ( nmhdr->code )
1797         {
1798             case LVN_BEGINRDRAG:
1799                 eventType = wxEVT_COMMAND_LIST_BEGIN_RDRAG;
1800                 // fall through
1801
1802             case LVN_BEGINDRAG:
1803                 if ( eventType == wxEVT_NULL )
1804                 {
1805                     eventType = wxEVT_COMMAND_LIST_BEGIN_DRAG;
1806                 }
1807
1808                 event.m_itemIndex = iItem;
1809                 event.m_pointDrag.x = nmLV->ptAction.x;
1810                 event.m_pointDrag.y = nmLV->ptAction.y;
1811                 break;
1812
1813             // NB: we have to handle both *A and *W versions here because some
1814             //    versions of comctl32.dll send ANSI message to an Unicode app
1815             case LVN_BEGINLABELEDITA:
1816                 {
1817                     eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
1818                     wxLV_ITEM item(((LV_DISPINFOA *)lParam)->item);
1819                     wxConvertFromMSWListItem(GetHwnd(), event.m_item, item);
1820                     event.m_itemIndex = event.m_item.m_itemId;
1821                 }
1822                 break;
1823             case LVN_BEGINLABELEDITW:
1824                 {
1825                     eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
1826                     wxLV_ITEM item(((LV_DISPINFOW *)lParam)->item);
1827                     wxConvertFromMSWListItem(GetHwnd(), event.m_item, item);
1828                     event.m_itemIndex = event.m_item.m_itemId;
1829                 }
1830                 break;
1831
1832             case LVN_ENDLABELEDITA:
1833                 {
1834                     eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
1835                     wxLV_ITEM item(((LV_DISPINFOA *)lParam)->item);
1836                     wxConvertFromMSWListItem(NULL, event.m_item, item);
1837                     if ( ((LV_ITEM)item).pszText == NULL ||
1838                          ((LV_ITEM)item).iItem == -1 )
1839                         return FALSE;
1840
1841                     event.m_itemIndex = event.m_item.m_itemId;
1842                 }
1843                 break;
1844             case LVN_ENDLABELEDITW:
1845                 {
1846                     eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
1847                     wxLV_ITEM item(((LV_DISPINFOW *)lParam)->item);
1848                     wxConvertFromMSWListItem(NULL, event.m_item, item);
1849                     if ( ((LV_ITEM)item).pszText == NULL ||
1850                          ((LV_ITEM)item).iItem == -1 )
1851                         return FALSE;
1852
1853                     event.m_itemIndex = event.m_item.m_itemId;
1854                 }
1855                 break;
1856
1857             case LVN_COLUMNCLICK:
1858                 eventType = wxEVT_COMMAND_LIST_COL_CLICK;
1859                 event.m_itemIndex = -1;
1860                 event.m_col = nmLV->iSubItem;
1861                 break;
1862
1863             case LVN_DELETEALLITEMS:
1864                 eventType = wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
1865                 event.m_itemIndex = -1;
1866                 break;
1867
1868             case LVN_DELETEITEM:
1869                 eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
1870                 event.m_itemIndex = iItem;
1871                 // delete the assoicated internal data
1872                 wxDeleteInternalData(this, iItem);
1873                 break;
1874
1875             case LVN_SETDISPINFO:
1876                 {
1877                     eventType = wxEVT_COMMAND_LIST_SET_INFO;
1878                     LV_DISPINFO *info = (LV_DISPINFO *)lParam;
1879                     wxConvertFromMSWListItem(GetHwnd(), event.m_item, info->item);
1880                 }
1881                 break;
1882
1883             case LVN_INSERTITEM:
1884                 eventType = wxEVT_COMMAND_LIST_INSERT_ITEM;
1885                 event.m_itemIndex = iItem;
1886                 break;
1887
1888             case LVN_ITEMCHANGED:
1889                 // we translate this catch all message into more interesting
1890                 // (and more easy to process) wxWindows events
1891
1892                 // first of all, we deal with the state change events only and
1893                 // only for valid items (item == -1 for the virtual list
1894                 // control)
1895                 if ( nmLV->uChanged & LVIF_STATE && iItem != -1 )
1896                 {
1897                     // temp vars for readability
1898                     const UINT stOld = nmLV->uOldState;
1899                     const UINT stNew = nmLV->uNewState;
1900
1901                     event.m_item.SetId(iItem);
1902                     event.m_item.SetMask(wxLIST_MASK_TEXT |
1903                                          wxLIST_MASK_IMAGE |
1904                                          wxLIST_MASK_DATA);
1905                     GetItem(event.m_item);
1906
1907                     // has the focus changed?
1908                     if ( !(stOld & LVIS_FOCUSED) && (stNew & LVIS_FOCUSED) )
1909                     {
1910                         eventType = wxEVT_COMMAND_LIST_ITEM_FOCUSED;
1911                         event.m_itemIndex = iItem;
1912                     }
1913
1914                     if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) )
1915                     {
1916                         if ( eventType != wxEVT_NULL )
1917                         {
1918                             // focus and selection have both changed: send the
1919                             // focus event from here and the selection one
1920                             // below
1921                             event.SetEventType(eventType);
1922                             (void)GetEventHandler()->ProcessEvent(event);
1923                         }
1924                         else // no focus event to send
1925                         {
1926                             // then need to set m_itemIndex as it wasn't done
1927                             // above
1928                             event.m_itemIndex = iItem;
1929                         }
1930
1931                         eventType = stNew & LVIS_SELECTED
1932                                         ? wxEVT_COMMAND_LIST_ITEM_SELECTED
1933                                         : wxEVT_COMMAND_LIST_ITEM_DESELECTED;
1934                     }
1935                 }
1936
1937                 if ( eventType == wxEVT_NULL )
1938                 {
1939                     // not an interesting event for us
1940                     return FALSE;
1941                 }
1942
1943                 break;
1944
1945             case LVN_KEYDOWN:
1946                 {
1947                     LV_KEYDOWN *info = (LV_KEYDOWN *)lParam;
1948                     WORD wVKey = info->wVKey;
1949
1950                     // get the current selection
1951                     long lItem = GetNextItem(-1,
1952                                              wxLIST_NEXT_ALL,
1953                                              wxLIST_STATE_SELECTED);
1954
1955                     // <Enter> or <Space> activate the selected item if any (but
1956                     // not with Shift and/or Ctrl as then they have a predefined
1957                     // meaning for the list view)
1958                     if ( lItem != -1 &&
1959                          (wVKey == VK_RETURN || wVKey == VK_SPACE) &&
1960                          !(wxIsShiftDown() || wxIsCtrlDown()) )
1961                     {
1962                         eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
1963                     }
1964                     else
1965                     {
1966                         eventType = wxEVT_COMMAND_LIST_KEY_DOWN;
1967
1968                         // wxCharCodeMSWToWX() returns 0 if the key is an ASCII
1969                         // value which should be used as is
1970                         int code = wxCharCodeMSWToWX(wVKey);
1971                         event.m_code = code ? code : wVKey;
1972                     }
1973
1974                     event.m_itemIndex =
1975                     event.m_item.m_itemId = lItem;
1976
1977                     if ( lItem != -1 )
1978                     {
1979                         // fill the other fields too
1980                         event.m_item.m_text = GetItemText(lItem);
1981                         event.m_item.m_data = GetItemData(lItem);
1982                     }
1983                 }
1984                 break;
1985
1986             case NM_DBLCLK:
1987                 // if the user processes it in wxEVT_COMMAND_LEFT_CLICK(), don't do
1988                 // anything else
1989                 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
1990                 {
1991                     return TRUE;
1992                 }
1993
1994                 // else translate it into wxEVT_COMMAND_LIST_ITEM_ACTIVATED event
1995                 // if it happened on an item (and not on empty place)
1996                 if ( iItem == -1 )
1997                 {
1998                     // not on item
1999                     return FALSE;
2000                 }
2001
2002                 eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
2003                 event.m_itemIndex = iItem;
2004                 event.m_item.m_text = GetItemText(iItem);
2005                 event.m_item.m_data = GetItemData(iItem);
2006                 break;
2007
2008             case NM_RCLICK:
2009                 // if the user processes it in wxEVT_COMMAND_RIGHT_CLICK(),
2010                 // don't do anything else
2011                 if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
2012                 {
2013                     return TRUE;
2014                 }
2015
2016                 // else translate it into wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK event
2017                 LV_HITTESTINFO lvhti;
2018                 wxZeroMemory(lvhti);
2019
2020                 ::GetCursorPos(&(lvhti.pt));
2021                 ::ScreenToClient(GetHwnd(),&(lvhti.pt));
2022                 if ( ListView_HitTest(GetHwnd(),&lvhti) != -1 )
2023                 {
2024                     if ( lvhti.flags & LVHT_ONITEM )
2025                     {
2026                         eventType = wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK;
2027                         event.m_itemIndex = lvhti.iItem;
2028                         event.m_pointDrag.x = lvhti.pt.x;
2029                         event.m_pointDrag.y = lvhti.pt.y;
2030                     }
2031                 }
2032                 break;
2033
2034 #if defined(_WIN32_IE) && _WIN32_IE >= 0x300 \
2035         && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
2036             case NM_CUSTOMDRAW:
2037                 *result = OnCustomDraw(lParam);
2038
2039                 return TRUE;
2040 #endif // _WIN32_IE >= 0x300
2041
2042             case LVN_ODCACHEHINT:
2043                 {
2044                     const NM_CACHEHINT *cacheHint = (NM_CACHEHINT *)lParam;
2045
2046                     eventType = wxEVT_COMMAND_LIST_CACHE_HINT;
2047
2048                     // we get some really stupid cache hints like ones for items in
2049                     // range 0..0 for an empty control or, after deleting an item,
2050                     // for items in invalid range - filter this garbage out
2051                     if ( cacheHint->iFrom < cacheHint->iTo )
2052                     {
2053                         event.m_oldItemIndex = cacheHint->iFrom;
2054
2055                         long iMax = GetItemCount();
2056                         event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
2057                                                                   : iMax - 1;
2058                     }
2059                     else
2060                     {
2061                         return FALSE;
2062                     }
2063                 }
2064                 break;
2065
2066             case LVN_GETDISPINFO:
2067                 if ( IsVirtual() )
2068                 {
2069                     LV_DISPINFO *info = (LV_DISPINFO *)lParam;
2070
2071                     LV_ITEM& lvi = info->item;
2072                     long item = lvi.iItem;
2073
2074                     if ( lvi.mask & LVIF_TEXT )
2075                     {
2076                         wxString text = OnGetItemText(item, lvi.iSubItem);
2077                         wxStrncpy(lvi.pszText, text, lvi.cchTextMax);
2078                     }
2079
2080 #if defined(_WIN32_IE) && _WIN32_IE >= 0x300 \
2081         && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 1 ) )
2082                     if ( lvi.mask & LVIF_IMAGE )
2083                     {
2084                         lvi.iImage = OnGetItemImage(item);
2085                     }
2086 #endif
2087
2088                     // a little dose of healthy paranoia: as we never use
2089                     // LVM_SETCALLBACKMASK we're not supposed to get these ones
2090                     wxASSERT_MSG( !(lvi.mask & LVIF_STATE),
2091                                   _T("we don't support state callbacks yet!") );
2092
2093                     return TRUE;
2094                 }
2095                 // fall through
2096
2097             default:
2098                 return wxControl::MSWOnNotify(idCtrl, lParam, result);
2099         }
2100     }
2101     else
2102     {
2103         // where did this one come from?
2104         return FALSE;
2105     }
2106
2107     // process the event
2108     // -----------------
2109
2110     event.SetEventType(eventType);
2111
2112     if ( !GetEventHandler()->ProcessEvent(event) )
2113         return FALSE;
2114
2115     // post processing
2116     // ---------------
2117
2118     switch ( nmhdr->code )
2119     {
2120         case LVN_DELETEALLITEMS:
2121             // always return TRUE to suppress all additional LVN_DELETEITEM
2122             // notifications - this makes deleting all items from a list ctrl
2123             // much faster
2124             *result = TRUE;
2125
2126             return TRUE;
2127
2128         case LVN_ENDLABELEDITA:
2129         case LVN_ENDLABELEDITW:
2130             // logic here is inversed compared to all the other messages
2131             *result = event.IsAllowed();
2132
2133             // don't keep a stale wxTextCtrl around
2134             if ( m_textCtrl )
2135             {
2136                 // EDIT control will be deleted by the list control itself so
2137                 // prevent us from deleting it as well
2138                 m_textCtrl->SetHWND(0);
2139                 m_textCtrl->UnsubclassWin();
2140                 delete m_textCtrl;
2141                 m_textCtrl = NULL;
2142             }
2143
2144             return TRUE;
2145     }
2146
2147     *result = !event.IsAllowed();
2148
2149     return TRUE;
2150 }
2151
2152 #if defined(_WIN32_IE) && _WIN32_IE >= 0x300
2153
2154 WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
2155 {
2156     LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)lParam;
2157     NMCUSTOMDRAW& nmcd = lplvcd->nmcd;
2158     switch ( nmcd.dwDrawStage )
2159     {
2160         case CDDS_PREPAINT:
2161             // if we've got any items with non standard attributes,
2162             // notify us before painting each item
2163             //
2164             // for virtual controls, always suppose that we have attributes as
2165             // there is no way to check for this
2166             return IsVirtual() || m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW
2167                                                : CDRF_DODEFAULT;
2168
2169         case CDDS_ITEMPREPAINT:
2170             {
2171                 size_t item = (size_t)nmcd.dwItemSpec;
2172                 if ( item >= (size_t)GetItemCount() )
2173                 {
2174                     // we get this message with item == 0 for an empty control,
2175                     // we must ignore it as calling OnGetItemAttr() would be
2176                     // wrong
2177                     return CDRF_DODEFAULT;
2178                 }
2179
2180                 wxListItemAttr *attr =
2181                     IsVirtual() ? OnGetItemAttr(item)
2182                                 : wxGetInternalDataAttr(this, item);
2183
2184                 if ( !attr )
2185                 {
2186                     // nothing to do for this item
2187                     return CDRF_DODEFAULT;
2188                 }
2189
2190                 HFONT hFont;
2191                 wxColour colText, colBack;
2192                 if ( attr->HasFont() )
2193                 {
2194                     wxFont font = attr->GetFont();
2195                     hFont = (HFONT)font.GetResourceHandle();
2196                 }
2197                 else
2198                 {
2199                     hFont = 0;
2200                 }
2201
2202                 if ( attr->HasTextColour() )
2203                 {
2204                     colText = attr->GetTextColour();
2205                 }
2206                 else
2207                 {
2208                     colText = GetTextColour();
2209                 }
2210
2211                 if ( attr->HasBackgroundColour() )
2212                 {
2213                     colBack = attr->GetBackgroundColour();
2214                 }
2215                 else
2216                 {
2217                     colBack = GetBackgroundColour();
2218                 }
2219
2220                 lplvcd->clrText = wxColourToRGB(colText);
2221                 lplvcd->clrTextBk = wxColourToRGB(colBack);
2222
2223                 // note that if we wanted to set colours for
2224                 // individual columns (subitems), we would have
2225                 // returned CDRF_NOTIFYSUBITEMREDRAW from here
2226                 if ( hFont )
2227                 {
2228                     ::SelectObject(nmcd.hdc, hFont);
2229
2230                     return CDRF_NEWFONT;
2231                 }
2232             }
2233             // fall through to return CDRF_DODEFAULT
2234
2235         default:
2236             return CDRF_DODEFAULT;
2237     }
2238 }
2239
2240 #endif // NM_CUSTOMDRAW supported
2241
2242 // Necessary for drawing hrules and vrules, if specified
2243 void wxListCtrl::OnPaint(wxPaintEvent& event)
2244 {
2245     wxPaintDC dc(this);
2246
2247     wxControl::OnPaint(event);
2248
2249     // Reset the device origin since it may have been set
2250     dc.SetDeviceOrigin(0, 0);
2251
2252     bool drawHRules = ((GetWindowStyle() & wxLC_HRULES) != 0);
2253     bool drawVRules = ((GetWindowStyle() & wxLC_VRULES) != 0);
2254
2255     if (!drawHRules && !drawVRules)
2256         return;
2257     if ((GetWindowStyle() & wxLC_REPORT) == 0)
2258         return;
2259
2260     wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
2261     dc.SetPen(pen);
2262     dc.SetBrush(* wxTRANSPARENT_BRUSH);
2263
2264     wxSize clientSize = GetClientSize();
2265     wxRect itemRect;
2266     int cy=0;
2267
2268     int itemCount = GetItemCount();
2269     int i;
2270     if (drawHRules)
2271     {
2272         long top = GetTopItem();
2273         for (i = top; i < top + GetCountPerPage() + 1; i++)
2274         {
2275             if (GetItemRect(i, itemRect))
2276             {
2277                 cy = itemRect.GetTop();
2278                 if (i != 0) // Don't draw the first one
2279                 {
2280                     dc.DrawLine(0, cy, clientSize.x, cy);
2281                 }
2282                 // Draw last line
2283                 if (i == itemCount - 1)
2284                 {
2285                     cy = itemRect.GetBottom();
2286                     dc.DrawLine(0, cy, clientSize.x, cy);
2287                 }
2288             }
2289         }
2290     }
2291     i = itemCount - 1;
2292     if (drawVRules && (i > -1))
2293     {
2294         wxRect firstItemRect;
2295         GetItemRect(0, firstItemRect);
2296
2297         if (GetItemRect(i, itemRect))
2298         {
2299             int col;
2300             int x = itemRect.GetX();
2301             for (col = 0; col < GetColumnCount(); col++)
2302             {
2303                 int colWidth = GetColumnWidth(col);
2304                 x += colWidth ;
2305                 dc.DrawLine(x-1, firstItemRect.GetY() - 2, x-1, itemRect.GetBottom());
2306             }
2307         }
2308     }
2309 }
2310
2311 // ----------------------------------------------------------------------------
2312 // virtual list controls
2313 // ----------------------------------------------------------------------------
2314
2315 wxString wxListCtrl::OnGetItemText(long WXUNUSED(item), long WXUNUSED(col)) const
2316 {
2317     // this is a pure virtual function, in fact - which is not really pure
2318     // because the controls which are not virtual don't need to implement it
2319     wxFAIL_MSG( _T("not supposed to be called") );
2320
2321     return wxEmptyString;
2322 }
2323
2324 int wxListCtrl::OnGetItemImage(long WXUNUSED(item)) const
2325 {
2326     // same as above
2327     wxFAIL_MSG( _T("not supposed to be called") );
2328
2329     return -1;
2330 }
2331
2332 wxListItemAttr *wxListCtrl::OnGetItemAttr(long WXUNUSED_UNLESS_DEBUG(item)) const
2333 {
2334     wxASSERT_MSG( item >= 0 && item < GetItemCount(),
2335                   _T("invalid item index in OnGetItemAttr()") );
2336
2337     // no attributes by default
2338     return NULL;
2339 }
2340
2341 void wxListCtrl::SetItemCount(long count)
2342 {
2343     wxASSERT_MSG( IsVirtual(), _T("this is for virtual controls only") );
2344
2345     if ( !::SendMessage(GetHwnd(), LVM_SETITEMCOUNT, (WPARAM)count, 0) )
2346     {
2347         wxLogLastError(_T("ListView_SetItemCount"));
2348     }
2349 }
2350
2351 void wxListCtrl::RefreshItem(long item)
2352 {
2353     // strangely enough, ListView_Update() results in much more flicker here
2354     // than a dumb Refresh() -- why?
2355 #if 0
2356     if ( !ListView_Update(GetHwnd(), item) )
2357     {
2358         wxLogLastError(_T("ListView_Update"));
2359     }
2360 #else // 1
2361     wxRect rect;
2362     GetItemRect(item, rect);
2363     RefreshRect(rect);
2364 #endif // 0/1
2365 }
2366
2367 void wxListCtrl::RefreshItems(long itemFrom, long itemTo)
2368 {
2369     wxRect rect1, rect2;
2370     GetItemRect(itemFrom, rect1);
2371     GetItemRect(itemTo, rect2);
2372
2373     wxRect rect = rect1;
2374     rect.height = rect2.GetBottom() - rect1.GetTop();
2375
2376     RefreshRect(rect);
2377 }
2378
2379 static wxListItemInternalData *wxGetInternalData(HWND hwnd, long itemId)
2380 {
2381     LV_ITEM it;
2382     it.mask = LVIF_PARAM;
2383     it.iItem = itemId;
2384
2385     bool success = ListView_GetItem(hwnd, &it) != 0;
2386     if (success)
2387         return (wxListItemInternalData *) it.lParam;
2388     else
2389         return NULL;
2390 };
2391
2392 static wxListItemInternalData *wxGetInternalData(wxListCtrl *ctl, long itemId)
2393 {
2394     return wxGetInternalData((HWND) ctl->GetHWND(), itemId);
2395 };
2396
2397 static wxListItemAttr *wxGetInternalDataAttr(wxListCtrl *ctl, long itemId)
2398 {
2399     wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
2400     if (data)
2401         return data->attr;
2402     else
2403         return NULL;
2404 };
2405
2406 static void wxDeleteInternalData(wxListCtrl* ctl, long itemId)
2407 {
2408     wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
2409     if (data)
2410     {
2411         delete data;
2412         LV_ITEM item;
2413         memset(&item, 0, sizeof(item));
2414         item.iItem = itemId;
2415         item.mask = LVIF_PARAM;
2416         item.lParam = (LPARAM) 0;
2417         ListView_SetItem((HWND)ctl->GetHWND(), &item);
2418     }
2419 }
2420
2421 static void wxConvertFromMSWListItem(HWND hwndListCtrl,
2422                                      wxListItem& info,
2423                                      LV_ITEM& lvItem)
2424 {
2425     wxListItemInternalData *internaldata =
2426         (wxListItemInternalData *) lvItem.lParam;
2427
2428     if (internaldata)
2429         info.m_data = internaldata->lParam;
2430
2431     info.m_mask = 0;
2432     info.m_state = 0;
2433     info.m_stateMask = 0;
2434     info.m_itemId = lvItem.iItem;
2435
2436     long oldMask = lvItem.mask;
2437
2438     bool needText = FALSE;
2439     if (hwndListCtrl != 0)
2440     {
2441         if ( lvItem.mask & LVIF_TEXT )
2442             needText = FALSE;
2443         else
2444             needText = TRUE;
2445
2446         if ( needText )
2447         {
2448             lvItem.pszText = new wxChar[513];
2449             lvItem.cchTextMax = 512;
2450         }
2451         lvItem.mask |= LVIF_TEXT | LVIF_IMAGE | LVIF_PARAM;
2452         ::SendMessage(hwndListCtrl, LVM_GETITEM, 0, (LPARAM)& lvItem);
2453     }
2454
2455     if ( lvItem.mask & LVIF_STATE )
2456     {
2457         info.m_mask |= wxLIST_MASK_STATE;
2458
2459         if ( lvItem.stateMask & LVIS_CUT)
2460         {
2461             info.m_stateMask |= wxLIST_STATE_CUT;
2462             if ( lvItem.state & LVIS_CUT )
2463                 info.m_state |= wxLIST_STATE_CUT;
2464         }
2465         if ( lvItem.stateMask & LVIS_DROPHILITED)
2466         {
2467             info.m_stateMask |= wxLIST_STATE_DROPHILITED;
2468             if ( lvItem.state & LVIS_DROPHILITED )
2469                 info.m_state |= wxLIST_STATE_DROPHILITED;
2470         }
2471         if ( lvItem.stateMask & LVIS_FOCUSED)
2472         {
2473             info.m_stateMask |= wxLIST_STATE_FOCUSED;
2474             if ( lvItem.state & LVIS_FOCUSED )
2475                 info.m_state |= wxLIST_STATE_FOCUSED;
2476         }
2477         if ( lvItem.stateMask & LVIS_SELECTED)
2478         {
2479             info.m_stateMask |= wxLIST_STATE_SELECTED;
2480             if ( lvItem.state & LVIS_SELECTED )
2481                 info.m_state |= wxLIST_STATE_SELECTED;
2482         }
2483     }
2484
2485     if ( lvItem.mask & LVIF_TEXT )
2486     {
2487         info.m_mask |= wxLIST_MASK_TEXT;
2488         info.m_text = lvItem.pszText;
2489     }
2490     if ( lvItem.mask & LVIF_IMAGE )
2491     {
2492         info.m_mask |= wxLIST_MASK_IMAGE;
2493         info.m_image = lvItem.iImage;
2494     }
2495     if ( lvItem.mask & LVIF_PARAM )
2496         info.m_mask |= wxLIST_MASK_DATA;
2497     if ( lvItem.mask & LVIF_DI_SETITEM )
2498         info.m_mask |= wxLIST_SET_ITEM;
2499     info.m_col = lvItem.iSubItem;
2500
2501     if (needText)
2502     {
2503         if (lvItem.pszText)
2504             delete[] lvItem.pszText;
2505     }
2506     lvItem.mask = oldMask;
2507 }
2508
2509 static void wxConvertToMSWFlags(long state, long stateMask, LV_ITEM& lvItem)
2510 {
2511     if (stateMask & wxLIST_STATE_CUT)
2512     {
2513         lvItem.stateMask |= LVIS_CUT;
2514         if (state & wxLIST_STATE_CUT)
2515             lvItem.state |= LVIS_CUT;
2516     }
2517     if (stateMask & wxLIST_STATE_DROPHILITED)
2518     {
2519         lvItem.stateMask |= LVIS_DROPHILITED;
2520         if (state & wxLIST_STATE_DROPHILITED)
2521             lvItem.state |= LVIS_DROPHILITED;
2522     }
2523     if (stateMask & wxLIST_STATE_FOCUSED)
2524     {
2525         lvItem.stateMask |= LVIS_FOCUSED;
2526         if (state & wxLIST_STATE_FOCUSED)
2527             lvItem.state |= LVIS_FOCUSED;
2528     }
2529     if (stateMask & wxLIST_STATE_SELECTED)
2530     {
2531         lvItem.stateMask |= LVIS_SELECTED;
2532         if (state & wxLIST_STATE_SELECTED)
2533             lvItem.state |= LVIS_SELECTED;
2534     }
2535 }
2536
2537 static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
2538                                    const wxListItem& info,
2539                                    LV_ITEM& lvItem)
2540 {
2541     lvItem.iItem = (int) info.m_itemId;
2542
2543     lvItem.iImage = info.m_image;
2544     lvItem.stateMask = 0;
2545     lvItem.state = 0;
2546     lvItem.mask = 0;
2547     lvItem.iSubItem = info.m_col;
2548
2549     if (info.m_mask & wxLIST_MASK_STATE)
2550     {
2551         lvItem.mask |= LVIF_STATE;
2552
2553         wxConvertToMSWFlags(info.m_state, info.m_stateMask, lvItem);
2554     }
2555
2556     if (info.m_mask & wxLIST_MASK_TEXT)
2557     {
2558         lvItem.mask |= LVIF_TEXT;
2559         if ( ctrl->GetWindowStyleFlag() & wxLC_USER_TEXT )
2560         {
2561             lvItem.pszText = LPSTR_TEXTCALLBACK;
2562         }
2563         else
2564         {
2565             // pszText is not const, hence the cast
2566             lvItem.pszText = (wxChar *)info.m_text.c_str();
2567             if ( lvItem.pszText )
2568                 lvItem.cchTextMax = info.m_text.Length();
2569             else
2570                 lvItem.cchTextMax = 0;
2571         }
2572     }
2573     if (info.m_mask & wxLIST_MASK_IMAGE)
2574         lvItem.mask |= LVIF_IMAGE;
2575 }
2576
2577 static void wxConvertToMSWListCol(int WXUNUSED(col), const wxListItem& item,
2578                                   LV_COLUMN& lvCol)
2579 {
2580     wxZeroMemory(lvCol);
2581
2582     if ( item.m_mask & wxLIST_MASK_TEXT )
2583     {
2584         lvCol.mask |= LVCF_TEXT;
2585         lvCol.pszText = (wxChar *)item.m_text.c_str(); // cast is safe
2586     }
2587
2588     if ( item.m_mask & wxLIST_MASK_FORMAT )
2589     {
2590         lvCol.mask |= LVCF_FMT;
2591
2592         if ( item.m_format == wxLIST_FORMAT_LEFT )
2593             lvCol.fmt = LVCFMT_LEFT;
2594         else if ( item.m_format == wxLIST_FORMAT_RIGHT )
2595             lvCol.fmt = LVCFMT_RIGHT;
2596         else if ( item.m_format == wxLIST_FORMAT_CENTRE )
2597             lvCol.fmt = LVCFMT_CENTER;
2598     }
2599
2600     if ( item.m_mask & wxLIST_MASK_WIDTH )
2601     {
2602         lvCol.mask |= LVCF_WIDTH;
2603         if ( item.m_width == wxLIST_AUTOSIZE)
2604             lvCol.cx = LVSCW_AUTOSIZE;
2605         else if ( item.m_width == wxLIST_AUTOSIZE_USEHEADER)
2606             lvCol.cx = LVSCW_AUTOSIZE_USEHEADER;
2607         else
2608             lvCol.cx = item.m_width;
2609     }
2610
2611 #if defined(_WIN32_IE) && _WIN32_IE >= 0x300 \
2612         && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 1 ) )
2613     if ( item.m_mask & wxLIST_MASK_IMAGE )
2614     {
2615         if ( wxTheApp->GetComCtl32Version() >= 470 )
2616         {
2617             lvCol.mask |= LVCF_IMAGE;
2618             lvCol.iImage = item.m_image;
2619         }
2620         //else: it doesn't support item images anyhow
2621     }
2622 #endif
2623 }
2624
2625 #endif // wxUSE_LISTCTRL