dlls/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 "commctrl.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(commctrl);
  33
  34
  35 static DWORD dwLastScrollTime = 0;
  36
  37 /***********************************************************************
  38  *              MakeDragList (COMCTL32.13)
  39  */
  40 BOOL WINAPI MakeDragList (HWND hwndLB)
  41 {
  42     FIXME("(0x%x)\n", hwndLB);
  43
  44
  45     return FALSE;
  46 }
  47
  48 /***********************************************************************
  49  *              DrawInsert (COMCTL32.15)
  50  */
  51 VOID WINAPI DrawInsert (HWND hwndParent, HWND hwndLB, INT nItem)
  52 {
  53     FIXME("(0x%x 0x%x %d)\n", hwndParent, hwndLB, nItem);
  54
  55
  56 }
  57
  58 /***********************************************************************
  59  *              LBItemFromPt (COMCTL32.14)
  60  */
  61 INT WINAPI LBItemFromPt (HWND hwndLB, POINT pt, BOOL bAutoScroll)
  62 {
  63     RECT rcClient;
  64     INT nIndex;
  65     DWORD dwScrollTime;
  66
  67     FIXME("(0x%x %ld x %ld %s)\n",
  68            hwndLB, pt.x, pt.y, bAutoScroll ? "TRUE" : "FALSE");
  69
  70     ScreenToClient (hwndLB, &pt);
  71     GetClientRect (hwndLB, &rcClient);
  72     nIndex = (INT)SendMessageA (hwndLB, LB_GETTOPINDEX, 0, 0);
  73
  74     if (PtInRect (&rcClient, pt))
  75     {
  76         /* point is inside -- get the item index */
  77         while (TRUE)
  78         {
  79             if (SendMessageA (hwndLB, LB_GETITEMRECT, nIndex, (LPARAM)&rcClient) == LB_ERR)
  80                 return -1;
  81
  82             if (PtInRect (&rcClient, pt))
  83                 return nIndex;
  84
  85             nIndex++;
  86         }
  87     }
  88     else
  89     {
  90         /* point is outside */
  91         if (!bAutoScroll)
  92             return -1;
  93
  94         if ((pt.x > rcClient.right) || (pt.x < rcClient.left))
  95             return -1;
  96
  97         if (pt.y < 0)
  98             nIndex--;
  99         else
 100             nIndex++;
 101
 102         dwScrollTime = GetTickCount ();
 103
 104         if ((dwScrollTime - dwLastScrollTime) < 200)
 105             return -1;
 106
 107         dwLastScrollTime = dwScrollTime;
 108
 109         SendMessageA (hwndLB, LB_SETTOPINDEX, (WPARAM)nIndex, 0);
 110     }
 111
 112     return -1;
 113 }
 114
 115
 116 #if 0
 117 static LRESULT CALLBACK
 118 DRAGLIST_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 119 {
 120
 121     return FALSE;
 122 }
 123 #endif
 124
 125
 126