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Fix inaccurate listview scrolling with PgUp/Down and Home/End keys.

This commit is contained in:
Paul Rupe 2002-10-07 21:44:01 +00:00 committed by Alexandre Julliard
parent 16377936e2
commit 1446a06ce9
1 changed files with 10 additions and 9 deletions
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19
dlls/comctl32/listview.c
View File

@ -4257,7 +4257,8 @@ static BOOL LISTVIEW_EnsureVisible(LISTVIEW_INFO *infoPtr, INT nItem, BOOL bPart
UINT uView = LISTVIEW_GetType(infoPtr);
INT nScrollPosHeight = 0;
INT nScrollPosWidth = 0;
INT nPartialAdjust = 0;
INT nHorzAdjust = 0;
INT nVertAdjust = 0;
INT nHorzDiff = 0;
INT nVertDiff = 0;
RECT rcItem;
@ -4277,12 +4278,12 @@ static BOOL LISTVIEW_EnsureVisible(LISTVIEW_INFO *infoPtr, INT nItem, BOOL bPart
if (rcItem.left < infoPtr->rcList.left)
{
nPartialAdjust = -1;
if (uView != LVS_REPORT) nHorzDiff = rcItem.left + infoPtr->rcList.left;
nHorzAdjust = -1;
if (uView != LVS_REPORT) nHorzDiff = rcItem.left - infoPtr->rcList.left;
}
else
{
nPartialAdjust = 1;
nHorzAdjust = 1;
if (uView != LVS_REPORT) nHorzDiff = rcItem.right - infoPtr->rcList.right;
}
}
@ -4297,12 +4298,12 @@ static BOOL LISTVIEW_EnsureVisible(LISTVIEW_INFO *infoPtr, INT nItem, BOOL bPart
if (rcItem.top < infoPtr->rcList.top)
{
nPartialAdjust = -1;
if (uView != LVS_LIST) nVertDiff = rcItem.top + infoPtr->rcList.top;
nVertAdjust = -1;
if (uView != LVS_LIST) nVertDiff = rcItem.top - infoPtr->rcList.top;
}
else
{
nPartialAdjust = 1;
nVertAdjust = 1;
if (uView != LVS_LIST) nVertDiff = rcItem.bottom - infoPtr->rcList.bottom;
}
}
@ -4312,14 +4313,14 @@ static BOOL LISTVIEW_EnsureVisible(LISTVIEW_INFO *infoPtr, INT nItem, BOOL bPart
if (nScrollPosWidth)
{
INT diff = nHorzDiff / nScrollPosWidth;
if (rcItem.left % nScrollPosWidth) diff += nPartialAdjust;
if (nHorzDiff % nScrollPosWidth) diff += nHorzAdjust;
LISTVIEW_HScroll(infoPtr, SB_INTERNAL, diff, 0);
}
if (nScrollPosHeight)
{
INT diff = nVertDiff / nScrollPosHeight;
if (rcItem.top % nScrollPosHeight) diff += nPartialAdjust;
if (nVertDiff % nScrollPosHeight) diff += nVertAdjust;
LISTVIEW_VScroll(infoPtr, SB_INTERNAL, diff, 0);
}