Listview N0
Dimitrie O. Paun
dpaun at rogers.com
Wed Oct 9 23:41:17 CDT 2002
Using HitTest (an externally callable function) internally
(rather than our own GetItemAtPt) has many advantages, most
important being that we get to _test_ it on every click
(and bad results are visible right away).
ChangeLog
Use (semi)standard HitTest, rather then our own little invention
Get rid of GetItemAtPt
Fix HitTest but in REPORT mode
Index: dlls/comctl32/listview.c
===================================================================
RCS file: /var/cvs/wine/dlls/comctl32/listview.c,v
retrieving revision 1.202
diff -u -r1.202 listview.c
--- dlls/comctl32/listview.c 10 Oct 2002 03:13:14 -0000 1.202
+++ dlls/comctl32/listview.c 10 Oct 2002 04:33:47 -0000
@@ -2528,38 +2528,6 @@
return bResult;
}
-/***
- * DESCRIPTION:
- * Selects an item based on coordinates.
- *
- * PARAMETER(S):
- * [I] infoPtr : valid pointer to the listview structure
- * [I] pt : mouse click ccordinates
- *
- * RETURN:
- * SUCCESS : item index
- * FAILURE : -1
- */
-/* FIXME: get rid of this function, use HitTest instead */
-static INT LISTVIEW_GetItemAtPt(LISTVIEW_INFO *infoPtr, POINT pt)
-{
- ITERATOR i;
- RECT rcItem;
-
- iterator_visibleitems(&i, infoPtr);
- while(iterator_next(&i))
- {
- rcItem.left = LVIR_SELECTBOUNDS;
- if (LISTVIEW_GetItemRect(infoPtr, i.nItem, &rcItem))
- {
- TRACE("i=%d, rcItem=%s\n", i.nItem, debugrect(&rcItem));
- if (PtInRect(&rcItem, pt)) break;
- }
- }
- iterator_destroy(&i);
-
- return i.nItem;
-}
/***
* DESCRIPTION:
@@ -5579,6 +5547,7 @@
* [I] infoPtr : valid pointer to the listview structure
* [IO] lpht : hit test information
* [I] subitem : fill out iSubItem.
+ * [I] select : return the index only if the hit selects the item
*
* NOTE:
* (mm 20001022): We must not allow iSubItem to be touched, for
@@ -5589,12 +5558,12 @@
* SUCCESS : item index
* FAILURE : -1
*/
-static LRESULT LISTVIEW_HitTest(LISTVIEW_INFO *infoPtr, LPLVHITTESTINFO lpht, BOOL subitem)
+static LRESULT LISTVIEW_HitTest(LISTVIEW_INFO *infoPtr, LPLVHITTESTINFO lpht, BOOL subitem, BOOL select)
{
UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
RECT rcBounds, rcIcon, rcLabel;
- TRACE("(x=%ld, y=%ld)\n", lpht->pt.x, lpht->pt.y);
+ TRACE("(pt=%s, subitem=%d, select=%d)\n", debugpoint(&lpht->pt), subitem, select);
lpht->flags = 0;
lpht->iItem = -1;
@@ -5644,15 +5613,18 @@
else
{
POINT Origin, Position;
- INT nPerCol = LISTVIEW_GetCountPerColumn(infoPtr);
+ INT nPerCol = (uView == LVS_REPORT) ? infoPtr->nItemCount : LISTVIEW_GetCountPerColumn(infoPtr);
if (!LISTVIEW_GetOrigin(infoPtr, &Origin)) return -1;
Position.x = lpht->pt.x - Origin.x;
Position.y = lpht->pt.y - Origin.y;
+ TRACE("Position=%s, nPerCol=%d, nItemHeight=%d, nColHeight=%d\n",
+ debugpoint(&Position), nPerCol, infoPtr->nItemHeight, nPerCol * infoPtr->nItemHeight);
if (Position.y < nPerCol * infoPtr->nItemHeight)
{
lpht->iItem = (Position.x / infoPtr->nItemWidth) * nPerCol + (Position.y / infoPtr->nItemHeight);
+ TRACE("iItem=%d\n", lpht->iItem);
if (lpht->iItem < 0 || lpht->iItem >= infoPtr->nItemCount) lpht->iItem = -1;
}
}
@@ -5718,7 +5690,11 @@
}
}
- return lpht->iItem;
+ if (!select || lpht->iItem == -1) return lpht->iItem;
+
+ if (uView == LVS_REPORT && (infoPtr->dwLvExStyle & LVS_EX_FULLROWSELECT)) return lpht->iItem;
+
+ return lpht->flags & (LVHT_ONITEMICON | LVHT_ONITEMLABEL) ? lpht->iItem : -1;
}
@@ -7600,7 +7576,7 @@
/* send NM_DBLCLK notification */
ZeroMemory(&nmlv, sizeof(NMLISTVIEW));
- LISTVIEW_HitTest(infoPtr, &htInfo, TRUE);
+ LISTVIEW_HitTest(infoPtr, &htInfo, TRUE, FALSE);
nmlv.iItem = htInfo.iItem;
nmlv.iSubItem = htInfo.iSubItem;
nmlv.ptAction = htInfo.pt;
@@ -7627,6 +7603,7 @@
*/
static LRESULT LISTVIEW_LButtonDown(LISTVIEW_INFO *infoPtr, WORD wKey, POINTS pts)
{
+ LVHITTESTINFO lvHitTestInfo;
LONG lStyle = infoPtr->dwStyle;
static BOOL bGroupSelect = TRUE;
POINT pt = { pts.x, pts.y };
@@ -7644,7 +7621,10 @@
/* set left button down flag */
infoPtr->bLButtonDown = TRUE;
- nItem = LISTVIEW_GetItemAtPt(infoPtr, pt);
+ lvHitTestInfo.pt.x = pts.x;
+ lvHitTestInfo.pt.y = pts.y;
+
+ nItem = LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, TRUE);
TRACE("at %s, nItem=%d\n", debugpoint(&pt), nItem);
if ((nItem >= 0) && (nItem < infoPtr->nItemCount))
{
@@ -7735,7 +7715,7 @@
/* send NM_CLICK notification */
ZeroMemory(&nmlv, sizeof(NMLISTVIEW));
- LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE);
+ LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, FALSE);
nmlv.iItem = lvHitTestInfo.iItem;
nmlv.iSubItem = lvHitTestInfo.iSubItem;
nmlv.ptAction = lvHitTestInfo.pt;
@@ -7973,11 +7953,11 @@
/* determine the index of the selected item */
lvHitTestInfo.pt.x = pts.x;
lvHitTestInfo.pt.y = pts.y;
- nItem = LISTVIEW_GetItemAtPt(infoPtr, lvHitTestInfo.pt);
+ nItem = LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE, TRUE);
if ((nItem >= 0) && (nItem < infoPtr->nItemCount))
{
- LISTVIEW_SetItemFocus(infoPtr,nItem);
+ LISTVIEW_SetItemFocus(infoPtr, nItem);
if (!((wKey & MK_SHIFT) || (wKey & MK_CONTROL)) &&
!LISTVIEW_GetItemState(infoPtr, nItem, LVIS_SELECTED))
LISTVIEW_SetSelection(infoPtr, nItem);
@@ -7990,7 +7970,6 @@
/* Send NM_RClICK notification */
ZeroMemory(&nmlv, sizeof(nmlv));
- LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, TRUE);
nmlv.iItem = lvHitTestInfo.iItem;
nmlv.iSubItem = lvHitTestInfo.iSubItem;
nmlv.ptAction = lvHitTestInfo.pt;
@@ -8049,14 +8028,14 @@
*/
static BOOL LISTVIEW_SetCursor(LISTVIEW_INFO *infoPtr, HWND hwnd, UINT nHittest, UINT wMouseMsg)
{
- POINT pt;
+ LVHITTESTINFO lvHitTestInfo;
if(!(infoPtr->dwLvExStyle & LVS_EX_TRACKSELECT)) return FALSE;
if(!infoPtr->hHotCursor) return FALSE;
- GetCursorPos(&pt);
- if (LISTVIEW_GetItemAtPt(infoPtr, pt) < 0) return FALSE;
+ GetCursorPos(&lvHitTestInfo.pt);
+ if (LISTVIEW_HitTest(infoPtr, &lvHitTestInfo, FALSE, FALSE) < 0) return FALSE;
SetCursor(infoPtr->hHotCursor);
@@ -8593,7 +8572,7 @@
/* case LVN_HASGROUP: */
case LVM_HITTEST:
- return LISTVIEW_HitTest(infoPtr, (LPLVHITTESTINFO)lParam, FALSE);
+ return LISTVIEW_HitTest(infoPtr, (LPLVHITTESTINFO)lParam, FALSE, FALSE);
case LVM_INSERTCOLUMNA:
return LISTVIEW_InsertColumnT(infoPtr, (INT)wParam, (LPLVCOLUMNW)lParam, FALSE);
@@ -8743,7 +8722,7 @@
return LISTVIEW_SortItems(infoPtr, (PFNLVCOMPARE)lParam, (LPARAM)wParam);
case LVM_SUBITEMHITTEST:
- return LISTVIEW_HitTest(infoPtr, (LPLVHITTESTINFO)lParam, TRUE);
+ return LISTVIEW_HitTest(infoPtr, (LPLVHITTESTINFO)lParam, TRUE, FALSE);
case LVM_UPDATE:
return LISTVIEW_Update(infoPtr, (INT)wParam);
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