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Authors: Chris Morgan <cmorgan@wpi.edu>, James Abbatiello <abbeyj@wpi.edu> 

Implemented GetNextItem for the Listview control.
This commit is contained in:
Alexandre Julliard 1999-05-22 15:57:16 +00:00
parent 3d93102dd4
commit 05237ebfd6
1 changed files with 95 additions and 4 deletions
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99
dlls/comctl32/listview.c
View File

@ -30,7 +30,6 @@
*
* Advanced functionality:
* LISTVIEW_GetNumberOfWorkAreas : not implemented
* LISTVIEW_GetNextItem : empty stub
* LISTVIEW_GetHotCursor : not implemented
* LISTVIEW_GetHotItem : not implemented
* LISTVIEW_GetHoverTime : not implemented
@ -3935,17 +3934,109 @@ static LRESULT LISTVIEW_GetItemTextA(HWND hwnd, INT nItem, LPLVITEMA lpLVItem)
*
* PARAMETER(S):
* [I] HWND : window handle
* [I] INT : item index
* [I] INT : starting search item index
* [I] UINT : relationship flag
*
* RETURN:
* SUCCESS : item index
* FAILURE : -1
*/
static LRESULT LISTVIEW_GetNextItem(HWND hwnd, INT nItem, UINT uFlags)
static LRESULT LISTVIEW_GetNextItem(HWND hwnd, INT iStart, UINT uFlags)
{
FIXME (listview, "empty stub!\n");
LISTVIEW_INFO *infoPtr = (LISTVIEW_INFO*)GetWindowLongA(hwnd, 0);
LONG lStyle = GetWindowLongA(hwnd, GWL_STYLE);
LISTVIEW_ITEM *lpItem;
UINT style_mask = LVS_TYPEMASK & lStyle;
UINT uMask = 0;
INT nItems = GETITEMCOUNT(infoPtr);
INT iIndex = iStart;
INT eIndex = nItems - 1;
INT sIndex = 0;
INT delta = 1;
INT nCountPerColumn = max((infoPtr->rcList.bottom - infoPtr->rcList.top) /
infoPtr->nItemHeight, 1);
INT nCountPerRow = max((infoPtr->rcList.right - infoPtr->rcList.left) /
infoPtr->nItemWidth, 1);
if(uFlags & LVNI_ABOVE) /* moving upwards from iStart */
{
if(style_mask == LVS_LIST || style_mask == LVS_REPORT)
delta = -1;
else
{
if(lStyle & LVS_ALIGNLEFT)
{
sIndex = iStart - (iStart % nCountPerColumn);
delta = -1;
}
else
delta = -nCountPerRow;
}
}
else if(uFlags & LVNI_BELOW) /* moving downwards from iStart */
{
if(style_mask == LVS_SMALLICON || style_mask == LVS_ICON)
{
if (lStyle & LVS_ALIGNLEFT)
eIndex = iStart + (nCountPerColumn - (iStart % nCountPerColumn) - 1);
else
delta = nCountPerRow;
}
}
else if(uFlags & LVNI_TOLEFT) /* moving to the left of iStart */
{
if(style_mask == LVS_LIST)
delta = -infoPtr->nCountPerColumn;
else if(style_mask == LVS_SMALLICON || style_mask == LVS_ICON)
{
if(style_mask & LVS_ALIGNLEFT)
delta = -nCountPerColumn;
else
{
sIndex = iStart - (iStart % nCountPerRow);
delta = -1;
}
}
else if(style_mask == LVS_REPORT)
return -1;
}
else if(uFlags & LVNI_TORIGHT) /* moving to the right of iStart */
{
if(style_mask == LVS_LIST)
delta = infoPtr->nCountPerColumn;
else if(style_mask == LVS_ICON || style_mask == LVS_SMALLICON)
{
if(lStyle & LVS_ALIGNLEFT)
delta = nCountPerColumn;
else
eIndex = iStart + (nCountPerRow - (iStart % nCountPerRow) - 1);
}
else if(style_mask == LVS_REPORT)
return -1;
}
/* perform come bounds checking before entering the main loop */
if(sIndex < 0) sIndex = 0;
if(eIndex > (nItems - 1)) eIndex = (nItems - 1);
/* build uMask, the mask we are searching for */
if(uFlags & LVNI_CUT) uMask|=LVIS_CUT;
if(uFlags & LVNI_DROPHILITED) uMask|=LVIS_DROPHILITED;
if(uFlags & LVNI_FOCUSED) uMask|=LVIS_FOCUSED;
if(uFlags & LVNI_SELECTED) uMask|=LVIS_SELECTED;
while(TRUE) /* searching loop */
{
iIndex+=delta;
if((iIndex < sIndex) || (iIndex > eIndex))
break;
/* see if flags match */
if(!uMask || (LISTVIEW_GetItemState(hwnd, iIndex, uMask) == uMask))
return iIndex;
}
return -1;
}