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comctl32: header: Make the column resizing smooth in full drag mode.

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Make the column resizing smooth in full drag mode even for listview
with lots of elements by redrawing only the resized column and calling
UpdateWindow.
This commit is contained in:
Mikołaj Zalewski 2006-05-22 22:47:37 +02:00 committed by Alexandre Julliard
parent e48a0a3c23
commit 64e5779c16
1 changed files with 18 additions and 7 deletions
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25
dlls/comctl32/header.c
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@ -1657,14 +1657,25 @@ HEADER_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
if (dwStyle & HDS_FULLDRAG) {
if (!HEADER_SendHeaderNotifyT (hwnd, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, NULL))
{
nWidth = pt.x - infoPtr->items[infoPtr->iMoveItem].rect.left + infoPtr->xTrackOffset;
if (nWidth < 0)
nWidth = 0;
infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
HEADER_SendHeaderNotifyT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, NULL);
HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
INT nOldWidth = lpItem->rect.right - lpItem->rect.left;
RECT rcClient;
RECT rcScroll;
nWidth = pt.x - lpItem->rect.left + infoPtr->xTrackOffset;
if (nWidth < 0) nWidth = 0;
infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
HEADER_SetItemBounds(hwnd);
GetClientRect(hwnd, &rcClient);
rcScroll = rcClient;
rcScroll.left = lpItem->rect.left + nOldWidth;
ScrollWindowEx(hwnd, nWidth - nOldWidth, 0, &rcScroll, &rcClient, NULL, NULL, 0);
InvalidateRect(hwnd, &lpItem->rect, FALSE);
UpdateWindow(hwnd);
HEADER_SendHeaderNotifyT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, NULL);
}
HEADER_SetItemBounds (hwnd);
InvalidateRect(hwnd, NULL, FALSE);
}
else {
hdc = GetDC (hwnd);