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Narrow down the items we iterate over in LIST, and REPORT mode. 

Fix a Client --> List coordinate transformations in FindItem.
Fix bug in HitItem (in LIST and REPORT mode).
Avoid the last bit of drawing in REPORT mode.
This commit is contained in:
Dimitrie O. Paun 2002-10-10 03:13:14 +00:00 committed by Alexandre Julliard
parent 9d678ff740
commit 05b4a09357
1 changed files with 42 additions and 19 deletions
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61
dlls/comctl32/listview.c
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@ -770,27 +770,47 @@ static inline BOOL iterator_empty(ITERATOR* i)
static BOOL iterator_frameditems(ITERATOR* i, LISTVIEW_INFO* infoPtr, const RECT* lprc)
{
UINT uView = infoPtr->dwStyle & LVS_TYPEMASK;
INT nPerCol, nPerRow;
INT lower, upper;
RECT frame = *lprc;
POINT Origin;
/* in case we fail, we want to return an empty iterator */
if (!iterator_empty(i)) return FALSE;
if (!LISTVIEW_GetOrigin(infoPtr, &Origin)) return FALSE;
OffsetRect(&frame, -Origin.x, -Origin.y);
if (uView == LVS_ICON || uView == LVS_SMALLICON)
{
/* FIXME: we got to do better then this */
i->range.lower = 0;
i->range.upper = infoPtr->nItemCount - 1;
return TRUE;
}
i->range.lower = LISTVIEW_GetTopIndex(infoPtr);
nPerCol = max((infoPtr->rcList.bottom - infoPtr->rcList.top) / infoPtr->nItemHeight, 1) + 1;
if (uView == LVS_REPORT)
nPerRow = 1;
else /* uView == LVS_LIST */
nPerRow = max((infoPtr->rcList.right - infoPtr->rcList.left)/infoPtr->nItemWidth, 1);
else if (uView == LVS_REPORT)
{
if (frame.left >= infoPtr->nItemWidth) return TRUE;
if (frame.top >= infoPtr->nItemHeight * infoPtr->nItemCount) return TRUE;
lower = frame.top / infoPtr->nItemHeight;
upper = (frame.bottom - 1) / infoPtr->nItemHeight;
}
else
{
INT nPerCol = max((infoPtr->rcList.bottom - infoPtr->rcList.top) / infoPtr->nItemHeight, 1);
if (frame.top >= infoPtr->nItemHeight * nPerCol) return TRUE;
lower = (frame.left / infoPtr->nItemWidth) * nPerCol + frame.top / infoPtr->nItemHeight;
upper = ((frame.right - 1) / infoPtr->nItemWidth) * nPerCol + (frame.bottom - 1) / infoPtr->nItemHeight;
}
i->range.upper = min(i->range.lower + nPerCol * nPerRow, infoPtr->nItemCount - 1);
if (upper < 0 || lower >= infoPtr->nItemCount) return TRUE;
lower = max(lower, 0);
upper = min(upper, infoPtr->nItemCount - 1);
if (upper < lower) return TRUE;
i->range.lower = lower;
i->range.upper = upper;
return TRUE;
}
@ -3539,10 +3559,6 @@ static void LISTVIEW_RefreshReport(LISTVIEW_INFO *infoPtr, HDC hdc, DWORD cdmode
isFocused = FALSE;
for (j = nFirstCol; j <= nLastCol; j++)
{
if (cdmode & CDRF_NOTIFYITEMDRAW)
cditemmode = notify_customdrawitem (infoPtr, hdc, i.nItem, j, CDDS_ITEMPREPAINT);
if (cditemmode & CDRF_SKIPDEFAULT) continue;
rcItem = lpCols[j].rc;
rcItem.left += REPORT_MARGINX;
rcItem.right = max(rcItem.left, rcItem.right - REPORT_MARGINX);
@ -3552,6 +3568,12 @@ static void LISTVIEW_RefreshReport(LISTVIEW_INFO *infoPtr, HDC hdc, DWORD cdmode
/* Offset the Scroll Bar Pos */
OffsetRect(&rcItem, ptOrig.x, ptOrig.y);
if (rgntype == COMPLEXREGION && !RectVisible(hdc, &rcItem)) continue;
if (cdmode & CDRF_NOTIFYITEMDRAW)
cditemmode = notify_customdrawitem (infoPtr, hdc, i.nItem, j, CDDS_ITEMPREPAINT);
if (cditemmode & CDRF_SKIPDEFAULT) continue;
if (j == 0)
isFocused = LISTVIEW_DrawItem(infoPtr, hdc, i.nItem, rcItem);
else
@ -4415,8 +4437,8 @@ static LRESULT LISTVIEW_FindItemW(LISTVIEW_INFO *infoPtr, INT nStart,
FIXME("LVFI_NEARESTXY is slow.\n");
if (!LISTVIEW_GetOrigin(infoPtr, &Origin)) return -1;
Destination.x = lpFindInfo->pt.x + Origin.x;
Destination.y = lpFindInfo->pt.y + Origin.y;
Destination.x = lpFindInfo->pt.x - Origin.x;
Destination.y = lpFindInfo->pt.y - Origin.y;
switch(lpFindInfo->vkDirection)
{
case VK_DOWN: Destination.y += infoPtr->nItemHeight; break;
@ -5622,15 +5644,16 @@ static LRESULT LISTVIEW_HitTest(LISTVIEW_INFO *infoPtr, LPLVHITTESTINFO lpht, BO
else
{
POINT Origin, Position;
INT nPerCol = LISTVIEW_GetCountPerColumn(infoPtr);
if (!LISTVIEW_GetOrigin(infoPtr, &Origin)) return -1;
Position.x = lpht->pt.x - Origin.x;
Position.y = lpht->pt.y - Origin.y;
if (Position.x < LISTVIEW_GetCountPerRow(infoPtr) * infoPtr->nItemWidth &&
Position.y < LISTVIEW_GetCountPerColumn(infoPtr) * infoPtr->nItemHeight)
if (Position.y < nPerCol * infoPtr->nItemHeight)
{
lpht->iItem = (Position.x / infoPtr->nItemWidth) * (Position.y / infoPtr->nItemHeight);
lpht->iItem = (Position.x / infoPtr->nItemWidth) * nPerCol + (Position.y / infoPtr->nItemHeight);
if (lpht->iItem < 0 || lpht->iItem >= infoPtr->nItemCount) lpht->iItem = -1;
}
}
}