dlls/comctl32/draglist.c

/*
 * Drag List control
 *
 * Copyright 1999 Eric Kohl
 *
 * NOTES
 *   This is just a dummy control. An author is needed! Any volunteers?
 *   I will only improve this control once in a while.
 *     Eric <ekohl@abo.rhein-zeitung.de>
 *
 * TODO:
 *   - Everything.
 */

#include "commctrl.h"
#include "debugtools.h"

DEFAULT_DEBUG_CHANNEL(commctrl)


static DWORD dwLastScrollTime = 0;


BOOL WINAPI MakeDragList (HWND hwndLB)
{
    FIXME("(0x%x)\n", hwndLB);


    return FALSE;
}


VOID WINAPI DrawInsert (HWND hwndParent, HWND hwndLB, INT nItem)
{
    FIXME("(0x%x 0x%x %d)\n", hwndParent, hwndLB, nItem);


}


INT WINAPI LBItemFromPt (HWND hwndLB, POINT pt, BOOL bAutoScroll)
{
    RECT rcClient;
    INT nIndex;
    DWORD dwScrollTime;

    FIXME("(0x%x %ld x %ld %s)\n",
	   hwndLB, pt.x, pt.y, bAutoScroll ? "TRUE" : "FALSE");

    ScreenToClient (hwndLB, &pt);
    GetClientRect (hwndLB, &rcClient);
    nIndex = (INT)SendMessageA (hwndLB, LB_GETTOPINDEX, 0, 0);

    if (PtInRect (&rcClient, pt))
    {
	/* point is inside -- get the item index */
	while (TRUE)
	{
	    if (SendMessageA (hwndLB, LB_GETITEMRECT, nIndex, (LPARAM)&rcClient) == LB_ERR)
		return -1;

	    if (PtInRect (&rcClient, pt))
		return nIndex;

	    nIndex++;
	}
    }
    else
    {
	/* point is outside */
	if (!bAutoScroll)
	    return -1;

	if ((pt.x > rcClient.right) || (pt.x < rcClient.left))
	    return -1;

	if (pt.y < 0)
	    nIndex--;
	else
	    nIndex++;

	dwScrollTime = GetTickCount ();

	if ((dwScrollTime - dwLastScrollTime) < 200)
	    return -1;

	dwLastScrollTime = dwScrollTime;

	SendMessageA (hwndLB, LB_SETTOPINDEX, (WPARAM)nIndex, 0);
    }

    return -1;
}


static LRESULT CALLBACK
DRAGLIST_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{

    return FALSE;
}