reactos/lib/comctl32/draglist.c

   1 /*
   2  * Drag List control
   3  *
   4  * Copyright 1999 Eric Kohl
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  * NOTES
  21  *   This is just a dummy control. An author is needed! Any volunteers?
  22  *   I will only improve this control once in a while.
  23  *     Eric <ekohl@abo.rhein-zeitung.de>
  24  *
  25  * TODO:
  26  *   - Everything.
  27  */
  28
  29 #include <stdarg.h>
  30
  31 #include "windef.h"
  32 #include "winbase.h"
  33 #include "wingdi.h"
  34 #include "winuser.h"
  35 #include "winnls.h"
  36 #include "commctrl.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(commctrl);
  40
  41
  42 static DWORD dwLastScrollTime = 0;
  43
  44 /***********************************************************************
  45  *              MakeDragList (COMCTL32.13)
  46  */
  47 BOOL WINAPI MakeDragList (HWND hwndLB)
  48 {
  49     FIXME("(%p)\n", hwndLB);
  50
  51
  52     return FALSE;
  53 }
  54
  55 /***********************************************************************
  56  *              DrawInsert (COMCTL32.15)
  57  */
  58 VOID WINAPI DrawInsert (HWND hwndParent, HWND hwndLB, INT nItem)
  59 {
  60     FIXME("(%p %p %d)\n", hwndParent, hwndLB, nItem);
  61
  62
  63 }
  64
  65 /***********************************************************************
  66  *              LBItemFromPt (COMCTL32.14)
  67  */
  68 INT WINAPI LBItemFromPt (HWND hwndLB, POINT pt, BOOL bAutoScroll)
  69 {
  70     RECT rcClient;
  71     INT nIndex;
  72     DWORD dwScrollTime;
  73
  74     FIXME("(%p %ld x %ld %s)\n",
  75            hwndLB, pt.x, pt.y, bAutoScroll ? "TRUE" : "FALSE");
  76
  77     ScreenToClient (hwndLB, &pt);
  78     GetClientRect (hwndLB, &rcClient);
  79     nIndex = (INT)SendMessageA (hwndLB, LB_GETTOPINDEX, 0, 0);
  80
  81     if (PtInRect (&rcClient, pt))
  82     {
  83         /* point is inside -- get the item index */
  84         while (TRUE)
  85         {
  86             if (SendMessageA (hwndLB, LB_GETITEMRECT, nIndex, (LPARAM)&rcClient) == LB_ERR)
  87                 return -1;
  88
  89             if (PtInRect (&rcClient, pt))
  90                 return nIndex;
  91
  92             nIndex++;
  93         }
  94     }
  95     else
  96     {
  97         /* point is outside */
  98         if (!bAutoScroll)
  99             return -1;
 100
 101         if ((pt.x > rcClient.right) || (pt.x < rcClient.left))
 102             return -1;
 103
 104         if (pt.y < 0)
 105             nIndex--;
 106         else
 107             nIndex++;
 108
 109         dwScrollTime = GetTickCount ();
 110
 111         if ((dwScrollTime - dwLastScrollTime) < 200)
 112             return -1;
 113
 114         dwLastScrollTime = dwScrollTime;
 115
 116         SendMessageA (hwndLB, LB_SETTOPINDEX, (WPARAM)nIndex, 0);
 117     }
 118
 119     return -1;
 120 }
 121
 122
 123 #if 0
 124 static LRESULT CALLBACK
 125 DRAGLIST_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 126 {
 127
 128     return FALSE;
 129 }
 130 #endif
 131
 132
 133